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Finding the Third Proportional to 222 and 325.38

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Solution

The third proportional to 222 and 325.38 is: 476.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    222 : 325.38 = 325.38 : x
  2. Step 2: Convert to fraction form
    222/325.38 = 325.38/x
  3. Step 3: Cross multiply
    222x = 325.38 × 325.38
  4. Step 4: Simplify right side
    222x = 105,868.89
  5. Step 5: Solve for x
    x = 105,868.89/222
  6. Step 6: Final answer
    x = 476.89

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.