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Finding the Fourth Proportional to 323.52, 446.37 and 199.17

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Solution

The fourth proportional to 323.52, 446.37 and 199.17 is: 274.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.52 : 446.37 = 199.17 : x
  2. Step 2: Convert to fraction form
    323.52/446.37 = 199.17/x
  3. Step 3: Cross multiply
    323.52x = 446.37 × 199.17
  4. Step 4: Simplify right side
    323.52x = 88,903.51
  5. Step 5: Solve for x
    x = 88,903.51/323.52
  6. Step 6: Final answer
    x = 274.80

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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.