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Finding the Fourth Proportional to 379,049.64, 568,576.31 and 154,412.24

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Solution

The fourth proportional to 379,049.64, 568,576.31 and 154,412.24 is: 231,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,049.64 : 568,576.31 = 154,412.24 : x
  2. Step 2: Convert to fraction form
    379,049.64/568,576.31 = 154,412.24/x
  3. Step 3: Cross multiply
    379,049.64x = 568,576.31 × 154,412.24
  4. Step 4: Simplify right side
    379,049.64x = 87,795,138,023.09
  5. Step 5: Solve for x
    x = 87,795,138,023.09/379,049.64
  6. Step 6: Final answer
    x = 231,619.10

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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.