The store shipped a batch of clothing, including 1,000 sets of children's clothing, which are men's clothing (1/4), and the number of men's clothing is women's clothing (4/9), how many sets of women's clothing are shipped in?
商店运进一批服装，其中儿童服装1000套，是男式服装的(1/4)，男式服装的套数又是女式服装的(4/9)，运进女式服装多少套？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">1_000 / (1/4) / (4/9)</gadget>
<output>9_000</output>

<result>9_000</result>