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Finding the Fourth Proportional to 527,387.56, 793,326.24 and 478,062.46

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Solution

The fourth proportional to 527,387.56, 793,326.24 and 478,062.46 is: 719,128.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,387.56 : 793,326.24 = 478,062.46 : x
  2. Step 2: Convert to fraction form
    527,387.56/793,326.24 = 478,062.46/x
  3. Step 3: Cross multiply
    527,387.56x = 793,326.24 × 478,062.46
  4. Step 4: Simplify right side
    527,387.56x = 379,259,493,876.95
  5. Step 5: Solve for x
    x = 379,259,493,876.95/527,387.56
  6. Step 6: Final answer
    x = 719,128.63

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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.