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Finding the Fourth Proportional to 379.74, 524.34 and 232.44

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Solution

The fourth proportional to 379.74, 524.34 and 232.44 is: 320.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.74 : 524.34 = 232.44 : x
  2. Step 2: Convert to fraction form
    379.74/524.34 = 232.44/x
  3. Step 3: Cross multiply
    379.74x = 524.34 × 232.44
  4. Step 4: Simplify right side
    379.74x = 121,877.59
  5. Step 5: Solve for x
    x = 121,877.59/379.74
  6. Step 6: Final answer
    x = 320.95

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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.