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Finding the Fourth Proportional to 796.88, 1,194.24 and 412.40

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Solution

The fourth proportional to 796.88, 1,194.24 and 412.40 is: 618.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.88 : 1,194.24 = 412.40 : x
  2. Step 2: Convert to fraction form
    796.88/1,194.24 = 412.40/x
  3. Step 3: Cross multiply
    796.88x = 1,194.24 × 412.40
  4. Step 4: Simplify right side
    796.88x = 492,504.58
  5. Step 5: Solve for x
    x = 492,504.58/796.88
  6. Step 6: Final answer
    x = 618.04

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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.