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Finding the Third Proportional to 342,830 and 744,626

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Solution

The third proportional to 342,830 and 744,626 is: 1,617,326.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,830 : 744,626 = 744,626 : x
  2. Step 2: Convert to fraction form
    342,830/744,626 = 744,626/x
  3. Step 3: Cross multiply
    342,830x = 744,626 × 744,626
  4. Step 4: Simplify right side
    342,830x = 554,467,879,876
  5. Step 5: Solve for x
    x = 554,467,879,876/342,830
  6. Step 6: Final answer
    x = 1,617,326.02

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.