Students measure the height of the flagpole, first erect a 2-meter-long bamboo on the ground, and measure the shadow length of 1.5 meters; at the same time, measure the flagpole shadow length of 4.5 meters, how many meters is the flagpole high.
同学们测量旗杆的高度，先在地上竖立一根2米长的竹子，量得影子长1.5米；同时量得旗杆影子长4.5米，旗杆高多少米．
<gadget id="calculator">2 / 1.5</gadget>
<output>1.333333</output>

<gadget id="calculator">1.333333 * 4.5</gadget>
<output>5.999999</output>

<result>5.999999</result>