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Finding the Fourth Proportional to 534,877.60, 738,034.32 and 343,847.20

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Solution

The fourth proportional to 534,877.60, 738,034.32 and 343,847.20 is: 474,446.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,877.60 : 738,034.32 = 343,847.20 : x
  2. Step 2: Convert to fraction form
    534,877.60/738,034.32 = 343,847.20/x
  3. Step 3: Cross multiply
    534,877.60x = 738,034.32 × 343,847.20
  4. Step 4: Simplify right side
    534,877.60x = 253,771,034,435.90
  5. Step 5: Solve for x
    x = 253,771,034,435.90/534,877.60
  6. Step 6: Final answer
    x = 474,446.93

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1.5x scale

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.