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Finding the Fourth Proportional to 732.24, 1,099.17 and 623.88

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Solution

The fourth proportional to 732.24, 1,099.17 and 623.88 is: 936.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.24 : 1,099.17 = 623.88 : x
  2. Step 2: Convert to fraction form
    732.24/1,099.17 = 623.88/x
  3. Step 3: Cross multiply
    732.24x = 1,099.17 × 623.88
  4. Step 4: Simplify right side
    732.24x = 685,750.18
  5. Step 5: Solve for x
    x = 685,750.18/732.24
  6. Step 6: Final answer
    x = 936.51

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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.