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Finding the Fourth Proportional to 629,842.60, 944,763.90 and 574,730.20

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Solution

The fourth proportional to 629,842.60, 944,763.90 and 574,730.20 is: 862,095.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,842.60 : 944,763.90 = 574,730.20 : x
  2. Step 2: Convert to fraction form
    629,842.60/944,763.90 = 574,730.20/x
  3. Step 3: Cross multiply
    629,842.60x = 944,763.90 × 574,730.20
  4. Step 4: Simplify right side
    629,842.60x = 542,984,345,199.78
  5. Step 5: Solve for x
    x = 542,984,345,199.78/629,842.60
  6. Step 6: Final answer
    x = 862,095.30

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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.