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Finding the Fourth Proportional to 451,103.52, 676,443.33 and 261,617.70

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Solution

The fourth proportional to 451,103.52, 676,443.33 and 261,617.70 is: 392,303.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,103.52 : 676,443.33 = 261,617.70 : x
  2. Step 2: Convert to fraction form
    451,103.52/676,443.33 = 261,617.70/x
  3. Step 3: Cross multiply
    451,103.52x = 676,443.33 × 261,617.70
  4. Step 4: Simplify right side
    451,103.52x = 176,969,548,174.94
  5. Step 5: Solve for x
    x = 176,969,548,174.94/451,103.52
  6. Step 6: Final answer
    x = 392,303.63

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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.