A passenger train and a freight train depart from two places at the same time and meet each other in 4.5 hours. The passenger train travels 65 kilometers per hour, which is 1.3 times the speed of the freight train. How many kilometers is the railway between the two places?
一列客车和一列货车同时从两地相对开出，4.5小时相遇，客车每小时行65千米，是货车速度的1.3倍，两地间的铁路长多少千米？
<gadget id="calculator">65 / 1.3</gadget>
<output>50</output>

<gadget id="calculator">65 + 50</gadget>
<output>115</output>

<gadget id="calculator">115 * 4.5</gadget>
<output>517.5</output>

<result>517.5</result>