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Finding the Fourth Proportional to 475,931.25, 656,773.11 and 271,969.20

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Solution

The fourth proportional to 475,931.25, 656,773.11 and 271,969.20 is: 375,310.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,931.25 : 656,773.11 = 271,969.20 : x
  2. Step 2: Convert to fraction form
    475,931.25/656,773.11 = 271,969.20/x
  3. Step 3: Cross multiply
    475,931.25x = 656,773.11 × 271,969.20
  4. Step 4: Simplify right side
    475,931.25x = 178,622,057,308.21
  5. Step 5: Solve for x
    x = 178,622,057,308.21/475,931.25
  6. Step 6: Final answer
    x = 375,310.63

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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.