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Finding the Fourth Proportional to 524,861.22, 724,657.08 and 403,788.90

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Solution

The fourth proportional to 524,861.22, 724,657.08 and 403,788.90 is: 557,496.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,861.22 : 724,657.08 = 403,788.90 : x
  2. Step 2: Convert to fraction form
    524,861.22/724,657.08 = 403,788.90/x
  3. Step 3: Cross multiply
    524,861.22x = 724,657.08 × 403,788.90
  4. Step 4: Simplify right side
    524,861.22x = 292,608,485,210.41
  5. Step 5: Solve for x
    x = 292,608,485,210.41/524,861.22
  6. Step 6: Final answer
    x = 557,496.87

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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.