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Finding the Fourth Proportional to 629,049.20, 943,573.80 and 488,908.40

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Solution

The fourth proportional to 629,049.20, 943,573.80 and 488,908.40 is: 733,362.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,049.20 : 943,573.80 = 488,908.40 : x
  2. Step 2: Convert to fraction form
    629,049.20/943,573.80 = 488,908.40/x
  3. Step 3: Cross multiply
    629,049.20x = 943,573.80 × 488,908.40
  4. Step 4: Simplify right side
    629,049.20x = 461,321,156,839.92
  5. Step 5: Solve for x
    x = 461,321,156,839.92/629,049.20
  6. Step 6: Final answer
    x = 733,362.60

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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.