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Finding the Fourth Proportional to 796.46, 1,192.16 and 766.22

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Solution

The fourth proportional to 796.46, 1,192.16 and 766.22 is: 1,146.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.46 : 1,192.16 = 766.22 : x
  2. Step 2: Convert to fraction form
    796.46/1,192.16 = 766.22/x
  3. Step 3: Cross multiply
    796.46x = 1,192.16 × 766.22
  4. Step 4: Simplify right side
    796.46x = 913,456.84
  5. Step 5: Solve for x
    x = 913,456.84/796.46
  6. Step 6: Final answer
    x = 1,146.90

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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.