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Finding the Fourth Proportional to 449,355.27, 674,241.30 and 196,602.45

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Solution

The fourth proportional to 449,355.27, 674,241.30 and 196,602.45 is: 294,994.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,355.27 : 674,241.30 = 196,602.45 : x
  2. Step 2: Convert to fraction form
    449,355.27/674,241.30 = 196,602.45/x
  3. Step 3: Cross multiply
    449,355.27x = 674,241.30 × 196,602.45
  4. Step 4: Simplify right side
    449,355.27x = 132,557,491,471.19
  5. Step 5: Solve for x
    x = 132,557,491,471.19/449,355.27
  6. Step 6: Final answer
    x = 294,994.85

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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.