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Finding the Fourth Proportional to 542,190.60, 813,285.90 and 353,233.80

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Solution

The fourth proportional to 542,190.60, 813,285.90 and 353,233.80 is: 529,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,190.60 : 813,285.90 = 353,233.80 : x
  2. Step 2: Convert to fraction form
    542,190.60/813,285.90 = 353,233.80/x
  3. Step 3: Cross multiply
    542,190.60x = 813,285.90 × 353,233.80
  4. Step 4: Simplify right side
    542,190.60x = 287,280,068,943.42
  5. Step 5: Solve for x
    x = 287,280,068,943.42/542,190.60
  6. Step 6: Final answer
    x = 529,850.70

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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.