On a map with a scale of 1:8,000,000, the distance between A and B is 9 cm. Cars A and B drive towards each other from A and B at the same time. When they meet each other, the distance traveled by cars A and B is 5. : 4. How many kilometers away was car A from place B when they met?
在比例尺是1：8000000的地图上，量得A、B两地相距9厘米，甲、乙两车分别从A、B两地同时相向行驶，相遇时甲、乙两车行驶的路程比是5：4，相遇时甲车距B地多少千米？
<gadget id="calculator">1 / 8_000_000</gadget>
<output>1/8_000_000 = around 0</output>

<gadget id="calculator">9 / (1/8_000_000) / 100_000</gadget>
<output>720</output>

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

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

<gadget id="calculator">720 * (4/9)</gadget>
<output>320</output>

<result>320</result>