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Finding the Third Proportional to 168,404 and 368,518

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Solution

The third proportional to 168,404 and 368,518 is: 806,426.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,404 : 368,518 = 368,518 : x
  2. Step 2: Convert to fraction form
    168,404/368,518 = 368,518/x
  3. Step 3: Cross multiply
    168,404x = 368,518 × 368,518
  4. Step 4: Simplify right side
    168,404x = 135,805,516,324
  5. Step 5: Solve for x
    x = 135,805,516,324/168,404
  6. Step 6: Final answer
    x = 806,426.90

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.