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Finding the Fourth Proportional to 356.92, 492.38 and 232.54

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Solution

The fourth proportional to 356.92, 492.38 and 232.54 is: 320.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.92 : 492.38 = 232.54 : x
  2. Step 2: Convert to fraction form
    356.92/492.38 = 232.54/x
  3. Step 3: Cross multiply
    356.92x = 492.38 × 232.54
  4. Step 4: Simplify right side
    356.92x = 114,497.40
  5. Step 5: Solve for x
    x = 114,497.40/356.92
  6. Step 6: Final answer
    x = 320.79

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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.