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Finding the Fourth Proportional to 797.22, 1,100.26 and 482.48

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Solution

The fourth proportional to 797.22, 1,100.26 and 482.48 is: 665.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.22 : 1,100.26 = 482.48 : x
  2. Step 2: Convert to fraction form
    797.22/1,100.26 = 482.48/x
  3. Step 3: Cross multiply
    797.22x = 1,100.26 × 482.48
  4. Step 4: Simplify right side
    797.22x = 530,849.70
  5. Step 5: Solve for x
    x = 530,849.70/797.22
  6. Step 6: Final answer
    x = 665.88

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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.