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Finding the Third Proportional to 201,885 and 424,695

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Solution

The third proportional to 201,885 and 424,695 is: 893,408.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,885 : 424,695 = 424,695 : x
  2. Step 2: Convert to fraction form
    201,885/424,695 = 424,695/x
  3. Step 3: Cross multiply
    201,885x = 424,695 × 424,695
  4. Step 4: Simplify right side
    201,885x = 180,365,843,025
  5. Step 5: Solve for x
    x = 180,365,843,025/201,885
  6. Step 6: Final answer
    x = 893,408.84

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.