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Finding the Fourth Proportional to 481,295.45, 664,224.60 and 274,568.40

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Solution

The fourth proportional to 481,295.45, 664,224.60 and 274,568.40 is: 378,925.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,295.45 : 664,224.60 = 274,568.40 : x
  2. Step 2: Convert to fraction form
    481,295.45/664,224.60 = 274,568.40/x
  3. Step 3: Cross multiply
    481,295.45x = 664,224.60 × 274,568.40
  4. Step 4: Simplify right side
    481,295.45x = 182,375,086,692.27
  5. Step 5: Solve for x
    x = 182,375,086,692.27/481,295.45
  6. Step 6: Final answer
    x = 378,925.43

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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.