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Finding the Fourth Proportional to 796.38, 1,099.04 and 447.06

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Solution

The fourth proportional to 796.38, 1,099.04 and 447.06 is: 616.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.38 : 1,099.04 = 447.06 : x
  2. Step 2: Convert to fraction form
    796.38/1,099.04 = 447.06/x
  3. Step 3: Cross multiply
    796.38x = 1,099.04 × 447.06
  4. Step 4: Simplify right side
    796.38x = 491,336.82
  5. Step 5: Solve for x
    x = 491,336.82/796.38
  6. Step 6: Final answer
    x = 616.96

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Why These Related Problems?

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