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Finding the Fourth Proportional to 527,687.60, 792,114.60 and 328,233.20

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Solution

The fourth proportional to 527,687.60, 792,114.60 and 328,233.20 is: 492,712.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,687.60 : 792,114.60 = 328,233.20 : x
  2. Step 2: Convert to fraction form
    527,687.60/792,114.60 = 328,233.20/x
  3. Step 3: Cross multiply
    527,687.60x = 792,114.60 × 328,233.20
  4. Step 4: Simplify right side
    527,687.60x = 259,998,309,924.72
  5. Step 5: Solve for x
    x = 259,998,309,924.72/527,687.60
  6. Step 6: Final answer
    x = 492,712.56

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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.