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Finding the Fourth Proportional to 468,093.38, 645,987.18 and 274,474.18

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Solution

The fourth proportional to 468,093.38, 645,987.18 and 274,474.18 is: 378,785.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,093.38 : 645,987.18 = 274,474.18 : x
  2. Step 2: Convert to fraction form
    468,093.38/645,987.18 = 274,474.18/x
  3. Step 3: Cross multiply
    468,093.38x = 645,987.18 × 274,474.18
  4. Step 4: Simplify right side
    468,093.38x = 177,306,801,521.01
  5. Step 5: Solve for x
    x = 177,306,801,521.01/468,093.38
  6. Step 6: Final answer
    x = 378,785.11

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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.