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Finding the Fourth Proportional to 475,866.50, 656,754.10 and 274,662.50

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Solution

The fourth proportional to 475,866.50, 656,754.10 and 274,662.50 is: 379,067.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,866.50 : 656,754.10 = 274,662.50 : x
  2. Step 2: Convert to fraction form
    475,866.50/656,754.10 = 274,662.50/x
  3. Step 3: Cross multiply
    475,866.50x = 656,754.10 × 274,662.50
  4. Step 4: Simplify right side
    475,866.50x = 180,385,722,991.25
  5. Step 5: Solve for x
    x = 180,385,722,991.25/475,866.50
  6. Step 6: Final answer
    x = 379,067.92

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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.