Two cars, A and B, leave from cities A and B at the same time. Car A travels 46.7 kilometers per hour, and car B is 8.6 kilometers faster than car A per hour. The two cars meet each other in 4 hours. How many kilometers are the distance between cities A and B? ?
甲乙两车从A、B两城同时相对开出，甲车每小时行46.7千米，乙车每小时比甲车快8.6千米，两车4小时相遇，A、B两城相距多少千米？
<gadget id="calculator">46.7 + 46.7 + 8.6</gadget>
<output>102</output>

<gadget id="calculator">102 * 4</gadget>
<output>408</output>

<result>408</result>