The total output of green vegetables in Jingyuan County last year was 7.2 million kilograms, which is (9/10) of the total output of green vegetables this year. How much is the total output of green vegetables in the county this year?
泾源县去年绿色蔬菜总产量720万千克，是今年绿色蔬菜总产量的(9/10)．今年全县绿色蔬菜总产量是多少万千克？
<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">720 / (9/10)</gadget>
<output>800</output>

<result>800</result>