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Finding the Third Proportional to 289,167.75 and 621,801

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Solution

The third proportional to 289,167.75 and 621,801 is: 1,337,066.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,167.75 : 621,801 = 621,801 : x
  2. Step 2: Convert to fraction form
    289,167.75/621,801 = 621,801/x
  3. Step 3: Cross multiply
    289,167.75x = 621,801 × 621,801
  4. Step 4: Simplify right side
    289,167.75x = 386,636,483,601
  5. Step 5: Solve for x
    x = 386,636,483,601/289,167.75
  6. Step 6: Final answer
    x = 1,337,066.40

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.