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Finding the Fourth Proportional to 496,469.70, 744,704.55 and 307,512.90

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Solution

The fourth proportional to 496,469.70, 744,704.55 and 307,512.90 is: 461,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,469.70 : 744,704.55 = 307,512.90 : x
  2. Step 2: Convert to fraction form
    496,469.70/744,704.55 = 307,512.90/x
  3. Step 3: Cross multiply
    496,469.70x = 744,704.55 × 307,512.90
  4. Step 4: Simplify right side
    496,469.70x = 229,006,255,813.70
  5. Step 5: Solve for x
    x = 229,006,255,813.70/496,469.70
  6. Step 6: Final answer
    x = 461,269.35

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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.