Two ships, A and B, depart from opposite ports at the same time. It is known that ship A travels 36.5 kilometers per hour, and ship B travels 43.2 kilometers per hour. After 8 hours, the two ships meet. Q: How many kilometers are these two ports apart?
甲、乙两艘轮船同时从两个港口相对开出．已知甲船每小时行36.5千米，乙船每小时行43.2千米，经过8小时两船相遇．问：这两个港口相距多少千米？
<gadget id="calculator">36.5 + 43.2</gadget>
<output>79.7</output>

<gadget id="calculator">79.7 * 8</gadget>
<output>637.6</output>

<result>637.6</result>