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Finding the Fourth Proportional to 605,845.70, 908,768.55 and 403,766.90

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Solution

The fourth proportional to 605,845.70, 908,768.55 and 403,766.90 is: 605,650.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,845.70 : 908,768.55 = 403,766.90 : x
  2. Step 2: Convert to fraction form
    605,845.70/908,768.55 = 403,766.90/x
  3. Step 3: Cross multiply
    605,845.70x = 908,768.55 × 403,766.90
  4. Step 4: Simplify right side
    605,845.70x = 366,930,660,251.00
  5. Step 5: Solve for x
    x = 366,930,660,251.00/605,845.70
  6. Step 6: Final answer
    x = 605,650.35

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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.