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Finding the Fourth Proportional to 452,647.73, 679,282.98 and 186,408.21

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Solution

The fourth proportional to 452,647.73, 679,282.98 and 186,408.21 is: 279,740.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,647.73 : 679,282.98 = 186,408.21 : x
  2. Step 2: Convert to fraction form
    452,647.73/679,282.98 = 186,408.21/x
  3. Step 3: Cross multiply
    452,647.73x = 679,282.98 × 186,408.21
  4. Step 4: Simplify right side
    452,647.73x = 126,623,924,385.27
  5. Step 5: Solve for x
    x = 126,623,924,385.27/452,647.73
  6. Step 6: Final answer
    x = 279,740.55

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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.