A company invests in a construction project, and the actual investment is 3 million yuan, which is (1/4) less than the plan. How much is the planned investment?
某公司投资建设项目，实际投资300万元，比计划节省了(1/4)，计划投资多少万元？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">300 / (3/4)</gadget>
<output>400</output>

<result>400</result>