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Finding the Fourth Proportional to 796.92, 1,099.76 and 482.18

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Solution

The fourth proportional to 796.92, 1,099.76 and 482.18 is: 665.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.92 : 1,099.76 = 482.18 : x
  2. Step 2: Convert to fraction form
    796.92/1,099.76 = 482.18/x
  3. Step 3: Cross multiply
    796.92x = 1,099.76 × 482.18
  4. Step 4: Simplify right side
    796.92x = 530,282.28
  5. Step 5: Solve for x
    x = 530,282.28/796.92
  6. Step 6: Final answer
    x = 665.41

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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.