The cement factory produces cement in September and October at a ratio of 7:8. In September, it produces 630 tons of cement. How many tons of cement is produced in October?
水泥厂九、十月份生产水泥的比是7：8，九月份生产水泥630吨，十月份生产水泥多少吨？
<gadget id="calculator">8 / 7</gadget>
<output>8/7 = around 1.142857</output>

<gadget id="calculator">630 * (8/7)</gadget>
<output>720</output>

<result>720</result>