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Finding the Fourth Proportional to 475,877.52, 656,709.48 and 271,991.70

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Solution

The fourth proportional to 475,877.52, 656,709.48 and 271,991.70 is: 375,347.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,877.52 : 656,709.48 = 271,991.70 : x
  2. Step 2: Convert to fraction form
    475,877.52/656,709.48 = 271,991.70/x
  3. Step 3: Cross multiply
    475,877.52x = 656,709.48 × 271,991.70
  4. Step 4: Simplify right side
    475,877.52x = 178,619,527,871.32
  5. Step 5: Solve for x
    x = 178,619,527,871.32/475,877.52
  6. Step 6: Final answer
    x = 375,347.69

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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.