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Finding the Fourth Proportional to 3,255.02, 4,882.49 and 789.86

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Solution

The fourth proportional to 3,255.02, 4,882.49 and 789.86 is: 1,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.02 : 4,882.49 = 789.86 : x
  2. Step 2: Convert to fraction form
    3,255.02/4,882.49 = 789.86/x
  3. Step 3: Cross multiply
    3,255.02x = 4,882.49 × 789.86
  4. Step 4: Simplify right side
    3,255.02x = 3,856,483.55
  5. Step 5: Solve for x
    x = 3,856,483.55/3,255.02
  6. Step 6: Final answer
    x = 1,184.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.