To build a water canal, the original plan was to build 0.24km per day, but the actual daily repair was 0.08km more than the original plan. After 14 days, it was still 0.4km behind. How many kilometers is the total length of this canal?
修一条水渠，原计划每天修0.24km，实际每天比原计划多修0.08km，14天后还差0.4km没修完，这条水渠全长多少千米？
<gadget id="calculator">0.24 + 0.08</gadget>
<output>0.32</output>

<gadget id="calculator">0.32 * 14</gadget>
<output>4.48</output>

<gadget id="calculator">4.48 + 0.4</gadget>
<output>4.88</output>

<result>4.88</result>