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Finding the Third Proportional to 961,421 and 1,392,559

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Solution

The third proportional to 961,421 and 1,392,559 is: 2,017,035.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,421 : 1,392,559 = 1,392,559 : x
  2. Step 2: Convert to fraction form
    961,421/1,392,559 = 1,392,559/x
  3. Step 3: Cross multiply
    961,421x = 1,392,559 × 1,392,559
  4. Step 4: Simplify right side
    961,421x = 1,939,220,568,481
  5. Step 5: Solve for x
    x = 1,939,220,568,481/961,421
  6. Step 6: Final answer
    x = 2,017,035.79

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.