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Finding the Fourth Proportional to 336.84, 464.96 and 238.69

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Solution

The fourth proportional to 336.84, 464.96 and 238.69 is: 329.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.84 : 464.96 = 238.69 : x
  2. Step 2: Convert to fraction form
    336.84/464.96 = 238.69/x
  3. Step 3: Cross multiply
    336.84x = 464.96 × 238.69
  4. Step 4: Simplify right side
    336.84x = 110,981.30
  5. Step 5: Solve for x
    x = 110,981.30/336.84
  6. Step 6: Final answer
    x = 329.48

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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.