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Finding the Third Proportional to 753,928 and 1,638,704

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Solution

The third proportional to 753,928 and 1,638,704 is: 3,561,813.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,928 : 1,638,704 = 1,638,704 : x
  2. Step 2: Convert to fraction form
    753,928/1,638,704 = 1,638,704/x
  3. Step 3: Cross multiply
    753,928x = 1,638,704 × 1,638,704
  4. Step 4: Simplify right side
    753,928x = 2,685,350,799,616
  5. Step 5: Solve for x
    x = 2,685,350,799,616/753,928
  6. Step 6: Final answer
    x = 3,561,813.33

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.