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Finding the Fourth Proportional to 483,136.20, 724,704.30 and 441,801.90

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Solution

The fourth proportional to 483,136.20, 724,704.30 and 441,801.90 is: 662,702.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,136.20 : 724,704.30 = 441,801.90 : x
  2. Step 2: Convert to fraction form
    483,136.20/724,704.30 = 441,801.90/x
  3. Step 3: Cross multiply
    483,136.20x = 724,704.30 × 441,801.90
  4. Step 4: Simplify right side
    483,136.20x = 320,175,736,678.17
  5. Step 5: Solve for x
    x = 320,175,736,678.17/483,136.20
  6. Step 6: Final answer
    x = 662,702.85

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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.