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Finding the Fourth Proportional to 458,501.22, 687,773.70 and 192,270.42

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Solution

The fourth proportional to 458,501.22, 687,773.70 and 192,270.42 is: 288,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,501.22 : 687,773.70 = 192,270.42 : x
  2. Step 2: Convert to fraction form
    458,501.22/687,773.70 = 192,270.42/x
  3. Step 3: Cross multiply
    458,501.22x = 687,773.70 × 192,270.42
  4. Step 4: Simplify right side
    458,501.22x = 132,238,538,163.95
  5. Step 5: Solve for x
    x = 132,238,538,163.95/458,501.22
  6. Step 6: Final answer
    x = 288,414.80

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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.