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Finding the Third Proportional to 1,238,638.50 and 1,744,287.75

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Solution

The third proportional to 1,238,638.50 and 1,744,287.75 is: 2,456,358.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,638.50 : 1,744,287.75 = 1,744,287.75 : x
  2. Step 2: Convert to fraction form
    1,238,638.50/1,744,287.75 = 1,744,287.75/x
  3. Step 3: Cross multiply
    1,238,638.50x = 1,744,287.75 × 1,744,287.75
  4. Step 4: Simplify right side
    1,238,638.50x = 3,042,539,754,800.06
  5. Step 5: Solve for x
    x = 3,042,539,754,800.06/1,238,638.50
  6. Step 6: Final answer
    x = 2,456,358.13

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.