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Finding the Fourth Proportional to 292.48, 439.20 and 196.24

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Solution

The fourth proportional to 292.48, 439.20 and 196.24 is: 294.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.48 : 439.20 = 196.24 : x
  2. Step 2: Convert to fraction form
    292.48/439.20 = 196.24/x
  3. Step 3: Cross multiply
    292.48x = 439.20 × 196.24
  4. Step 4: Simplify right side
    292.48x = 86,188.61
  5. Step 5: Solve for x
    x = 86,188.61/292.48
  6. Step 6: Final answer
    x = 294.68

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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.