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Finding the Fourth Proportional to 541,747.90, 812,751.45 and 261,034.30

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Solution

The fourth proportional to 541,747.90, 812,751.45 and 261,034.30 is: 391,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,747.90 : 812,751.45 = 261,034.30 : x
  2. Step 2: Convert to fraction form
    541,747.90/812,751.45 = 261,034.30/x
  3. Step 3: Cross multiply
    541,747.90x = 812,751.45 × 261,034.30
  4. Step 4: Simplify right side
    541,747.90x = 212,156,005,824.74
  5. Step 5: Solve for x
    x = 212,156,005,824.74/541,747.90
  6. Step 6: Final answer
    x = 391,613.90

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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.