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Finding the Fourth Proportional to 714,702.92, 986,309.32 and 404,581.44

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Solution

The fourth proportional to 714,702.92, 986,309.32 and 404,581.44 is: 558,333.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,702.92 : 986,309.32 = 404,581.44 : x
  2. Step 2: Convert to fraction form
    714,702.92/986,309.32 = 404,581.44/x
  3. Step 3: Cross multiply
    714,702.92x = 986,309.32 × 404,581.44
  4. Step 4: Simplify right side
    714,702.92x = 399,042,444,971.02
  5. Step 5: Solve for x
    x = 399,042,444,971.02/714,702.92
  6. Step 6: Final answer
    x = 558,333.31

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.