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Finding the Fourth Proportional to 451,092.98, 676,427.58 and 261,607.20

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Solution

The fourth proportional to 451,092.98, 676,427.58 and 261,607.20 is: 392,287.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,092.98 : 676,427.58 = 261,607.20 : x
  2. Step 2: Convert to fraction form
    451,092.98/676,427.58 = 261,607.20/x
  3. Step 3: Cross multiply
    451,092.98x = 676,427.58 × 261,607.20
  4. Step 4: Simplify right side
    451,092.98x = 176,958,325,206.58
  5. Step 5: Solve for x
    x = 176,958,325,206.58/451,092.98
  6. Step 6: Final answer
    x = 392,287.92

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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.