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Finding the Third Proportional to 212,174 and 462,220

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Solution

The third proportional to 212,174 and 462,220 is: 1,006,943.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,174 : 462,220 = 462,220 : x
  2. Step 2: Convert to fraction form
    212,174/462,220 = 462,220/x
  3. Step 3: Cross multiply
    212,174x = 462,220 × 462,220
  4. Step 4: Simplify right side
    212,174x = 213,647,328,400
  5. Step 5: Solve for x
    x = 213,647,328,400/212,174
  6. Step 6: Final answer
    x = 1,006,943.96

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.