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Finding the Fourth Proportional to 646,874.20, 970,484.10 and 577,235.80

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Solution

The fourth proportional to 646,874.20, 970,484.10 and 577,235.80 is: 866,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,874.20 : 970,484.10 = 577,235.80 : x
  2. Step 2: Convert to fraction form
    646,874.20/970,484.10 = 577,235.80/x
  3. Step 3: Cross multiply
    646,874.20x = 970,484.10 × 577,235.80
  4. Step 4: Simplify right side
    646,874.20x = 560,198,165,850.78
  5. Step 5: Solve for x
    x = 560,198,165,850.78/646,874.20
  6. Step 6: Final answer
    x = 866,007.90

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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.