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Finding the Fourth Proportional to 629,920.10, 944,880.15 and 574,807.70

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Solution

The fourth proportional to 629,920.10, 944,880.15 and 574,807.70 is: 862,211.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,920.10 : 944,880.15 = 574,807.70 : x
  2. Step 2: Convert to fraction form
    629,920.10/944,880.15 = 574,807.70/x
  3. Step 3: Cross multiply
    629,920.10x = 944,880.15 × 574,807.70
  4. Step 4: Simplify right side
    629,920.10x = 543,124,385,797.16
  5. Step 5: Solve for x
    x = 543,124,385,797.16/629,920.10
  6. Step 6: Final answer
    x = 862,211.55

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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.