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Finding the Fourth Proportional to 732.32, 1,098.16 and 276

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Solution

The fourth proportional to 732.32, 1,098.16 and 276 is: 413.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.32 : 1,098.16 = 276 : x
  2. Step 2: Convert to fraction form
    732.32/1,098.16 = 276/x
  3. Step 3: Cross multiply
    732.32x = 1,098.16 × 276
  4. Step 4: Simplify right side
    732.32x = 303,092.16
  5. Step 5: Solve for x
    x = 303,092.16/732.32
  6. Step 6: Final answer
    x = 413.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.