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Finding the Fourth Proportional to 418,682.20, 628,169.10 and 182,194.60

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Solution

The fourth proportional to 418,682.20, 628,169.10 and 182,194.60 is: 273,355.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,682.20 : 628,169.10 = 182,194.60 : x
  2. Step 2: Convert to fraction form
    418,682.20/628,169.10 = 182,194.60/x
  3. Step 3: Cross multiply
    418,682.20x = 628,169.10 × 182,194.60
  4. Step 4: Simplify right side
    418,682.20x = 114,449,017,906.86
  5. Step 5: Solve for x
    x = 114,449,017,906.86/418,682.20
  6. Step 6: Final answer
    x = 273,355.35

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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.