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Finding the Third Proportional to 835,408 and 1,345,129

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Solution

The third proportional to 835,408 and 1,345,129 is: 2,165,854.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,408 : 1,345,129 = 1,345,129 : x
  2. Step 2: Convert to fraction form
    835,408/1,345,129 = 1,345,129/x
  3. Step 3: Cross multiply
    835,408x = 1,345,129 × 1,345,129
  4. Step 4: Simplify right side
    835,408x = 1,809,372,026,641
  5. Step 5: Solve for x
    x = 1,809,372,026,641/835,408
  6. Step 6: Final answer
    x = 2,165,854.32

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.