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Finding the Third Proportional to 263.44 and 492.38

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Solution

The third proportional to 263.44 and 492.38 is: 920.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.44 : 492.38 = 492.38 : x
  2. Step 2: Convert to fraction form
    263.44/492.38 = 492.38/x
  3. Step 3: Cross multiply
    263.44x = 492.38 × 492.38
  4. Step 4: Simplify right side
    263.44x = 242,433.14
  5. Step 5: Solve for x
    x = 242,433.14/263.44
  6. Step 6: Final answer
    x = 920.27

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.