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Finding the Fourth Proportional to 527,654.61, 791,593.71 and 203,451

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Solution

The fourth proportional to 527,654.61, 791,593.71 and 203,451 is: 305,219.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,654.61 : 791,593.71 = 203,451 : x
  2. Step 2: Convert to fraction form
    527,654.61/791,593.71 = 203,451/x
  3. Step 3: Cross multiply
    527,654.61x = 791,593.71 × 203,451
  4. Step 4: Simplify right side
    527,654.61x = 161,050,531,893.21
  5. Step 5: Solve for x
    x = 161,050,531,893.21/527,654.61
  6. Step 6: Final answer
    x = 305,219.61

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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.