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Finding the Fourth Proportional to 496,906.20, 745,359.30 and 437,857.20

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Solution

The fourth proportional to 496,906.20, 745,359.30 and 437,857.20 is: 656,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,906.20 : 745,359.30 = 437,857.20 : x
  2. Step 2: Convert to fraction form
    496,906.20/745,359.30 = 437,857.20/x
  3. Step 3: Cross multiply
    496,906.20x = 745,359.30 × 437,857.20
  4. Step 4: Simplify right side
    496,906.20x = 326,360,936,091.96
  5. Step 5: Solve for x
    x = 326,360,936,091.96/496,906.20
  6. Step 6: Final answer
    x = 656,785.80

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Similar ratio
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1.5x scale

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.