On the threshing floor there is a pile of conical grain piles with a bottom area of 2.5 square meters and a height of 1.2 meters. Each cubic meter of rice weighs about 540 kilograms. The yield rate of rice is 75%, how many kilograms of rice can be milled from this pile of rice?
打谷场上有一堆圆锥形谷堆，底面积是2.5平方米，高是1.2米．每立方米稻谷约重540千克．稻谷的出米率是75%，这堆稻谷可以碾米多少千克？
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">10 * 540 * (3/4)</gadget>
<output>4_050</output>

<result>4_050</result>