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Finding the Fourth Proportional to 629,943.90, 944,915.85 and 454,109.10

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Solution

The fourth proportional to 629,943.90, 944,915.85 and 454,109.10 is: 681,163.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,943.90 : 944,915.85 = 454,109.10 : x
  2. Step 2: Convert to fraction form
    629,943.90/944,915.85 = 454,109.10/x
  3. Step 3: Cross multiply
    629,943.90x = 944,915.85 × 454,109.10
  4. Step 4: Simplify right side
    629,943.90x = 429,094,886,219.24
  5. Step 5: Solve for x
    x = 429,094,886,219.24/629,943.90
  6. Step 6: Final answer
    x = 681,163.65

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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.