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Finding the Fourth Proportional to 726,897.92, 1,003,119 and 404,601.12

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Solution

The fourth proportional to 726,897.92, 1,003,119 and 404,601.12 is: 558,349.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,897.92 : 1,003,119 = 404,601.12 : x
  2. Step 2: Convert to fraction form
    726,897.92/1,003,119 = 404,601.12/x
  3. Step 3: Cross multiply
    726,897.92x = 1,003,119 × 404,601.12
  4. Step 4: Simplify right side
    726,897.92x = 405,863,070,893.28
  5. Step 5: Solve for x
    x = 405,863,070,893.28/726,897.92
  6. Step 6: Final answer
    x = 558,349.47

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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.