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Finding the Fourth Proportional to 461.92, 692.96 and 231.07

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Solution

The fourth proportional to 461.92, 692.96 and 231.07 is: 346.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.92 : 692.96 = 231.07 : x
  2. Step 2: Convert to fraction form
    461.92/692.96 = 231.07/x
  3. Step 3: Cross multiply
    461.92x = 692.96 × 231.07
  4. Step 4: Simplify right side
    461.92x = 160,122.27
  5. Step 5: Solve for x
    x = 160,122.27/461.92
  6. Step 6: Final answer
    x = 346.65

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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.