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Finding the Fourth Proportional to 425,846.28, 587,519.46 and 272,968.74

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Solution

The fourth proportional to 425,846.28, 587,519.46 and 272,968.74 is: 376,601.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,846.28 : 587,519.46 = 272,968.74 : x
  2. Step 2: Convert to fraction form
    425,846.28/587,519.46 = 272,968.74/x
  3. Step 3: Cross multiply
    425,846.28x = 587,519.46 × 272,968.74
  4. Step 4: Simplify right side
    425,846.28x = 160,374,446,721.68
  5. Step 5: Solve for x
    x = 160,374,446,721.68/425,846.28
  6. Step 6: Final answer
    x = 376,601.73

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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.