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Finding the Third Proportional to 719,854 and 1,666,507

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Solution

The third proportional to 719,854 and 1,666,507 is: 3,858,067.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,854 : 1,666,507 = 1,666,507 : x
  2. Step 2: Convert to fraction form
    719,854/1,666,507 = 1,666,507/x
  3. Step 3: Cross multiply
    719,854x = 1,666,507 × 1,666,507
  4. Step 4: Simplify right side
    719,854x = 2,777,245,581,049
  5. Step 5: Solve for x
    x = 2,777,245,581,049/719,854
  6. Step 6: Final answer
    x = 3,858,067.86

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.