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Finding the Third Proportional to 318,174 and 702,588

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Solution

The third proportional to 318,174 and 702,588 is: 1,551,446.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,174 : 702,588 = 702,588 : x
  2. Step 2: Convert to fraction form
    318,174/702,588 = 702,588/x
  3. Step 3: Cross multiply
    318,174x = 702,588 × 702,588
  4. Step 4: Simplify right side
    318,174x = 493,629,897,744
  5. Step 5: Solve for x
    x = 493,629,897,744/318,174
  6. Step 6: Final answer
    x = 1,551,446.37

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.