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Finding the Fourth Proportional to 605,418.60, 908,127.90 and 576,388.20

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Solution

The fourth proportional to 605,418.60, 908,127.90 and 576,388.20 is: 864,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,418.60 : 908,127.90 = 576,388.20 : x
  2. Step 2: Convert to fraction form
    605,418.60/908,127.90 = 576,388.20/x
  3. Step 3: Cross multiply
    605,418.60x = 908,127.90 × 576,388.20
  4. Step 4: Simplify right side
    605,418.60x = 523,434,205,650.78
  5. Step 5: Solve for x
    x = 523,434,205,650.78/605,418.60
  6. Step 6: Final answer
    x = 864,582.30

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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.