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Finding the Fourth Proportional to 498,418.85, 747,628.28 and 498,418.85

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Solution

The fourth proportional to 498,418.85, 747,628.28 and 498,418.85 is: 747,628.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,418.85 : 747,628.28 = 498,418.85 : x
  2. Step 2: Convert to fraction form
    498,418.85/747,628.28 = 498,418.85/x
  3. Step 3: Cross multiply
    498,418.85x = 747,628.28 × 498,418.85
  4. Step 4: Simplify right side
    498,418.85x = 372,632,025,052.98
  5. Step 5: Solve for x
    x = 372,632,025,052.98/498,418.85
  6. Step 6: Final answer
    x = 747,628.28

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Double scale
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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.