Two ships set off at the same time from the east to Westport, which is 324 kilometers apart. When ship A arrives at Westport, ship B is still 52.8 kilometers away from Westport. It is known that ship B travels 45.2 kilometers per hour. Ask for ship A to travel per hour. How many kilometers? (solution with equation)
两艘轮船同时从东往相距324的千米的西港出发，当甲船到达西港时，乙船离西港还有52.8千米，已知乙船每小时行45.2千米，求甲船每小时行多少千米？(用方程解答)
<gadget id="calculator">324 / 45.2</gadget>
<output>7.168142</output>

<gadget id="calculator">52.8 / 45.2</gadget>
<output>1.168142</output>

<gadget id="calculator">7.168142 - 1.168142</gadget>
<output>6</output>

<gadget id="calculator">324 / 6</gadget>
<output>54</output>

<result>54</result>