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Finding the Fourth Proportional to 2,796.16, 4,193.92 and 744.32

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Solution

The fourth proportional to 2,796.16, 4,193.92 and 744.32 is: 1,116.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,796.16 : 4,193.92 = 744.32 : x
  2. Step 2: Convert to fraction form
    2,796.16/4,193.92 = 744.32/x
  3. Step 3: Cross multiply
    2,796.16x = 4,193.92 × 744.32
  4. Step 4: Simplify right side
    2,796.16x = 3,121,618.53
  5. Step 5: Solve for x
    x = 3,121,618.53/2,796.16
  6. Step 6: Final answer
    x = 1,116.39

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.