Fill a conical container with a height of 3 decimeters and a bottom radius of 2 decimeters with sand, and then pour all the sand into a cylindrical container, which just fills (2/7) of the cylindrical container. What is the volume of the cylindrical container?
在一个高是3分米，底面半径是2分米的圆锥形容器里装满沙子，再将这些沙子全部倒入一个圆柱形容器内，刚好装了圆柱形容器的(2/7)，这个圆柱形容器的容积是多少？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">3 / (2/7)</gadget>
<output>21/2 = around 10.5</output>

<gadget id="calculator">(1/3) * 3.14 * 4 * (21/2)</gadget>
<output>43.96</output>

<result>43.96</result>