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Finding the Fourth Proportional to 629,938.40, 944,907.60 and 454,103.60

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Solution

The fourth proportional to 629,938.40, 944,907.60 and 454,103.60 is: 681,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,938.40 : 944,907.60 = 454,103.60 : x
  2. Step 2: Convert to fraction form
    629,938.40/944,907.60 = 454,103.60/x
  3. Step 3: Cross multiply
    629,938.40x = 944,907.60 × 454,103.60
  4. Step 4: Simplify right side
    629,938.40x = 429,085,942,827.36
  5. Step 5: Solve for x
    x = 429,085,942,827.36/629,938.40
  6. Step 6: Final answer
    x = 681,155.40

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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.