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Finding the Fourth Proportional to 462,655.28, 638,469.24 and 271,670.96

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Solution

The fourth proportional to 462,655.28, 638,469.24 and 271,670.96 is: 374,908.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,655.28 : 638,469.24 = 271,670.96 : x
  2. Step 2: Convert to fraction form
    462,655.28/638,469.24 = 271,670.96/x
  3. Step 3: Cross multiply
    462,655.28x = 638,469.24 × 271,670.96
  4. Step 4: Simplify right side
    462,655.28x = 173,453,551,361.27
  5. Step 5: Solve for x
    x = 173,453,551,361.27/462,655.28
  6. Step 6: Final answer
    x = 374,908.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.