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Finding the Fourth Proportional to 527,064.60, 791,115.30 and 261,125.40

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Solution

The fourth proportional to 527,064.60, 791,115.30 and 261,125.40 is: 391,944.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,064.60 : 791,115.30 = 261,125.40 : x
  2. Step 2: Convert to fraction form
    527,064.60/791,115.30 = 261,125.40/x
  3. Step 3: Cross multiply
    527,064.60x = 791,115.30 × 261,125.40
  4. Step 4: Simplify right side
    527,064.60x = 206,580,299,158.62
  5. Step 5: Solve for x
    x = 206,580,299,158.62/527,064.60
  6. Step 6: Final answer
    x = 391,944.93

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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.