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Finding the Fourth Proportional to 372,604.62, 557,190.13 and 276,722.90

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Solution

The fourth proportional to 372,604.62, 557,190.13 and 276,722.90 is: 413,809.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,604.62 : 557,190.13 = 276,722.90 : x
  2. Step 2: Convert to fraction form
    372,604.62/557,190.13 = 276,722.90/x
  3. Step 3: Cross multiply
    372,604.62x = 557,190.13 × 276,722.90
  4. Step 4: Simplify right side
    372,604.62x = 154,187,268,624.98
  5. Step 5: Solve for x
    x = 154,187,268,624.98/372,604.62
  6. Step 6: Final answer
    x = 413,809.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.