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Finding the Fourth Proportional to 454,859.64, 681,589.62 and 267,665.40

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Solution

The fourth proportional to 454,859.64, 681,589.62 and 267,665.40 is: 401,086.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,859.64 : 681,589.62 = 267,665.40 : x
  2. Step 2: Convert to fraction form
    454,859.64/681,589.62 = 267,665.40/x
  3. Step 3: Cross multiply
    454,859.64x = 681,589.62 × 267,665.40
  4. Step 4: Simplify right side
    454,859.64x = 182,437,958,273.15
  5. Step 5: Solve for x
    x = 182,437,958,273.15/454,859.64
  6. Step 6: Final answer
    x = 401,086.27

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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.