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Finding the Fourth Proportional to 522,934.60, 784,401.90 and 491,441.80

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Solution

The fourth proportional to 522,934.60, 784,401.90 and 491,441.80 is: 737,162.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,934.60 : 784,401.90 = 491,441.80 : x
  2. Step 2: Convert to fraction form
    522,934.60/784,401.90 = 491,441.80/x
  3. Step 3: Cross multiply
    522,934.60x = 784,401.90 × 491,441.80
  4. Step 4: Simplify right side
    522,934.60x = 385,487,881,659.42
  5. Step 5: Solve for x
    x = 385,487,881,659.42/522,934.60
  6. Step 6: Final answer
    x = 737,162.70

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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.