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Finding the Fourth Proportional to 327,766,512.60, 491,649,768.90 and 254,587,086.90

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Solution

The fourth proportional to 327,766,512.60, 491,649,768.90 and 254,587,086.90 is: 381,880,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,766,512.60 : 491,649,768.90 = 254,587,086.90 : x
  2. Step 2: Convert to fraction form
    327,766,512.60/491,649,768.90 = 254,587,086.90/x
  3. Step 3: Cross multiply
    327,766,512.60x = 491,649,768.90 × 254,587,086.90
  4. Step 4: Simplify right side
    327,766,512.60x = 125,167,682,439,309,216
  5. Step 5: Solve for x
    x = 125,167,682,439,309,216/327,766,512.60
  6. Step 6: Final answer
    x = 381,880,630.35

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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.