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Finding the Fourth Proportional to 664,391.10, 996,586.65 and 617,151.90

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Solution

The fourth proportional to 664,391.10, 996,586.65 and 617,151.90 is: 925,727.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,391.10 : 996,586.65 = 617,151.90 : x
  2. Step 2: Convert to fraction form
    664,391.10/996,586.65 = 617,151.90/x
  3. Step 3: Cross multiply
    664,391.10x = 996,586.65 × 617,151.90
  4. Step 4: Simplify right side
    664,391.10x = 615,045,344,562.14
  5. Step 5: Solve for x
    x = 615,045,344,562.14/664,391.10
  6. Step 6: Final answer
    x = 925,727.85

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Double scale
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Similar ratio
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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.