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Finding the Fourth Proportional to 449,722.72, 674,770.90 and 196,873.05

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Solution

The fourth proportional to 449,722.72, 674,770.90 and 196,873.05 is: 295,391.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,722.72 : 674,770.90 = 196,873.05 : x
  2. Step 2: Convert to fraction form
    449,722.72/674,770.90 = 196,873.05/x
  3. Step 3: Cross multiply
    449,722.72x = 674,770.90 × 196,873.05
  4. Step 4: Simplify right side
    449,722.72x = 132,844,205,134.25
  5. Step 5: Solve for x
    x = 132,844,205,134.25/449,722.72
  6. Step 6: Final answer
    x = 295,391.36

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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.