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Finding the Fourth Proportional to 472,896.20, 709,344.30 and 444,902.60

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Solution

The fourth proportional to 472,896.20, 709,344.30 and 444,902.60 is: 667,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,896.20 : 709,344.30 = 444,902.60 : x
  2. Step 2: Convert to fraction form
    472,896.20/709,344.30 = 444,902.60/x
  3. Step 3: Cross multiply
    472,896.20x = 709,344.30 × 444,902.60
  4. Step 4: Simplify right side
    472,896.20x = 315,589,123,365.18
  5. Step 5: Solve for x
    x = 315,589,123,365.18/472,896.20
  6. Step 6: Final answer
    x = 667,353.90

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Similar ratio
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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.