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Finding the Third Proportional to 168,690 and 362,390

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Solution

The third proportional to 168,690 and 362,390 is: 778,507.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,690 : 362,390 = 362,390 : x
  2. Step 2: Convert to fraction form
    168,690/362,390 = 362,390/x
  3. Step 3: Cross multiply
    168,690x = 362,390 × 362,390
  4. Step 4: Simplify right side
    168,690x = 131,326,512,100
  5. Step 5: Solve for x
    x = 131,326,512,100/168,690
  6. Step 6: Final answer
    x = 778,507.99

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.