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Finding the Fourth Proportional to 336.73, 464.70 and 189.38

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Solution

The fourth proportional to 336.73, 464.70 and 189.38 is: 261.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.73 : 464.70 = 189.38 : x
  2. Step 2: Convert to fraction form
    336.73/464.70 = 189.38/x
  3. Step 3: Cross multiply
    336.73x = 464.70 × 189.38
  4. Step 4: Simplify right side
    336.73x = 88,003.94
  5. Step 5: Solve for x
    x = 88,003.94/336.73
  6. Step 6: Final answer
    x = 261.35

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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.