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Finding the Fourth Proportional to 462.49, 638.16 and 265.96

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Solution

The fourth proportional to 462.49, 638.16 and 265.96 is: 366.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.49 : 638.16 = 265.96 : x
  2. Step 2: Convert to fraction form
    462.49/638.16 = 265.96/x
  3. Step 3: Cross multiply
    462.49x = 638.16 × 265.96
  4. Step 4: Simplify right side
    462.49x = 169,725.03
  5. Step 5: Solve for x
    x = 169,725.03/462.49
  6. Step 6: Final answer
    x = 366.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.