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Finding the Fourth Proportional to 443,120.13, 664,680.18 and 353,956.14

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Solution

The fourth proportional to 443,120.13, 664,680.18 and 353,956.14 is: 530,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,120.13 : 664,680.18 = 353,956.14 : x
  2. Step 2: Convert to fraction form
    443,120.13/664,680.18 = 353,956.14/x
  3. Step 3: Cross multiply
    443,120.13x = 664,680.18 × 353,956.14
  4. Step 4: Simplify right side
    443,120.13x = 235,267,630,847.31
  5. Step 5: Solve for x
    x = 235,267,630,847.31/443,120.13
  6. Step 6: Final answer
    x = 530,934.20

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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.