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Finding the Fourth Proportional to 461,200.20, 691,800.30 and 382,468.20

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Solution

The fourth proportional to 461,200.20, 691,800.30 and 382,468.20 is: 573,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,200.20 : 691,800.30 = 382,468.20 : x
  2. Step 2: Convert to fraction form
    461,200.20/691,800.30 = 382,468.20/x
  3. Step 3: Cross multiply
    461,200.20x = 691,800.30 × 382,468.20
  4. Step 4: Simplify right side
    461,200.20x = 264,591,615,500.46
  5. Step 5: Solve for x
    x = 264,591,615,500.46/461,200.20
  6. Step 6: Final answer
    x = 573,702.30

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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.