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Finding the Fourth Proportional to 437,617.40, 656,426.10 and 349,043.90

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Solution

The fourth proportional to 437,617.40, 656,426.10 and 349,043.90 is: 523,565.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,617.40 : 656,426.10 = 349,043.90 : x
  2. Step 2: Convert to fraction form
    437,617.40/656,426.10 = 349,043.90/x
  3. Step 3: Cross multiply
    437,617.40x = 656,426.10 × 349,043.90
  4. Step 4: Simplify right side
    437,617.40x = 229,121,526,005.79
  5. Step 5: Solve for x
    x = 229,121,526,005.79/437,617.40
  6. Step 6: Final answer
    x = 523,565.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.