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Finding the Fourth Proportional to 629,760.60, 944,640.90 and 605,266.20

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Solution

The fourth proportional to 629,760.60, 944,640.90 and 605,266.20 is: 907,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,760.60 : 944,640.90 = 605,266.20 : x
  2. Step 2: Convert to fraction form
    629,760.60/944,640.90 = 605,266.20/x
  3. Step 3: Cross multiply
    629,760.60x = 944,640.90 × 605,266.20
  4. Step 4: Simplify right side
    629,760.60x = 571,759,207,907.58
  5. Step 5: Solve for x
    x = 571,759,207,907.58/629,760.60
  6. Step 6: Final answer
    x = 907,899.30

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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.