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Finding the Fourth Proportional to 562.88, 844.20 and 197.68

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Solution

The fourth proportional to 562.88, 844.20 and 197.68 is: 296.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.88 : 844.20 = 197.68 : x
  2. Step 2: Convert to fraction form
    562.88/844.20 = 197.68/x
  3. Step 3: Cross multiply
    562.88x = 844.20 × 197.68
  4. Step 4: Simplify right side
    562.88x = 166,881.46
  5. Step 5: Solve for x
    x = 166,881.46/562.88
  6. Step 6: Final answer
    x = 296.48

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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.