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Finding the Fourth Proportional to 527,140.83, 726,910.61 and 450,912.27

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Solution

The fourth proportional to 527,140.83, 726,910.61 and 450,912.27 is: 621,793.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,140.83 : 726,910.61 = 450,912.27 : x
  2. Step 2: Convert to fraction form
    527,140.83/726,910.61 = 450,912.27/x
  3. Step 3: Cross multiply
    527,140.83x = 726,910.61 × 450,912.27
  4. Step 4: Simplify right side
    527,140.83x = 327,772,910,987.62
  5. Step 5: Solve for x
    x = 327,772,910,987.62/527,140.83
  6. Step 6: Final answer
    x = 621,793.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.