Passenger and freight trains depart from A and B respectively at the same time. It is known that the speed ratio of the passenger and freight trains is 4:5. After the two vehicles met on the way, they continued driving. The speed of the truck increases by 20%, and the speed of the bus remains unchanged. After another 4 hours, the truck arrives at point A, and the bus is still 112 kilometers away from point B. How many kilometers are there between A and B?
客、货两车分别从A、B两地同时相对开出，已知客、货两车速度的比是4：5．两车在途中相遇后，继续行驶．货车把速度提高20%，客车速度不变，再行4小时后，货车到达A地，而客车离B地还有112千米．A、B两地相距多少千米？
<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">4 + 5</gadget>
<output>9</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">(4/9) / 4 / (6/5)</gadget>
<output>5/54 = around 0.092593</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(5/54) * (4/5) * 4</gadget>
<output>8/27 = around 0.296296</output>

<gadget id="calculator">(5/9) - (8/27)</gadget>
<output>7/27 = around 0.259259</output>

<gadget id="calculator">112 / (7/27)</gadget>
<output>432</output>

<result>432</result>