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Finding the Fourth Proportional to 377,904.45, 521,469.45 and 232,687.20

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Solution

The fourth proportional to 377,904.45, 521,469.45 and 232,687.20 is: 321,084.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,904.45 : 521,469.45 = 232,687.20 : x
  2. Step 2: Convert to fraction form
    377,904.45/521,469.45 = 232,687.20/x
  3. Step 3: Cross multiply
    377,904.45x = 521,469.45 × 232,687.20
  4. Step 4: Simplify right side
    377,904.45x = 121,339,266,206.04
  5. Step 5: Solve for x
    x = 121,339,266,206.04/377,904.45
  6. Step 6: Final answer
    x = 321,084.51

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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.