On a map with a scale of 1:15000, it is measured that the length of a rectangular building is 6 cm and the width is 4 cm. What is the actual area of the playground in square meters?
在比例尺为1：15000的地图上，量得一长方形建筑的长是6厘米，宽是4厘米，操场的实际面积是多少平方米？
<gadget id="calculator">1 / 15_000</gadget>
<output>1/15_000 = around 0.000067</output>

<gadget id="calculator">6 / (1/15_000) / 100</gadget>
<output>900</output>

<gadget id="calculator">4 / (1/15_000) / 100</gadget>
<output>600</output>

<gadget id="calculator">900 * 600</gadget>
<output>540_000</output>

<result>540_000</result>