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Finding the Fourth Proportional to 736.67, 1,103.79 and 493.27

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Solution

The fourth proportional to 736.67, 1,103.79 and 493.27 is: 739.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    736.67 : 1,103.79 = 493.27 : x
  2. Step 2: Convert to fraction form
    736.67/1,103.79 = 493.27/x
  3. Step 3: Cross multiply
    736.67x = 1,103.79 × 493.27
  4. Step 4: Simplify right side
    736.67x = 544,466.49
  5. Step 5: Solve for x
    x = 544,466.49/736.67
  6. Step 6: Final answer
    x = 739.09

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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.