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Finding the Fourth Proportional to 332.01, 457.74 and 238.68

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Solution

The fourth proportional to 332.01, 457.74 and 238.68 is: 329.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.01 : 457.74 = 238.68 : x
  2. Step 2: Convert to fraction form
    332.01/457.74 = 238.68/x
  3. Step 3: Cross multiply
    332.01x = 457.74 × 238.68
  4. Step 4: Simplify right side
    332.01x = 109,253.38
  5. Step 5: Solve for x
    x = 109,253.38/332.01
  6. Step 6: Final answer
    x = 329.07

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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.