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Finding the Fourth Proportional to 527,449.44, 790,644.96 and 261,403.20

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Solution

The fourth proportional to 527,449.44, 790,644.96 and 261,403.20 is: 391,842.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,449.44 : 790,644.96 = 261,403.20 : x
  2. Step 2: Convert to fraction form
    527,449.44/790,644.96 = 261,403.20/x
  3. Step 3: Cross multiply
    527,449.44x = 790,644.96 × 261,403.20
  4. Step 4: Simplify right side
    527,449.44x = 206,677,122,607.87
  5. Step 5: Solve for x
    x = 206,677,122,607.87/527,449.44
  6. Step 6: Final answer
    x = 391,842.53

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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.