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Finding the Fourth Proportional to 3,195.18, 4,408.22 and 1,868.40

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Solution

The fourth proportional to 3,195.18, 4,408.22 and 1,868.40 is: 2,577.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.18 : 4,408.22 = 1,868.40 : x
  2. Step 2: Convert to fraction form
    3,195.18/4,408.22 = 1,868.40/x
  3. Step 3: Cross multiply
    3,195.18x = 4,408.22 × 1,868.40
  4. Step 4: Simplify right side
    3,195.18x = 8,236,322.92
  5. Step 5: Solve for x
    x = 8,236,322.92/3,195.18
  6. Step 6: Final answer
    x = 2,577.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.