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Finding the Third Proportional to 393,726 and 859,626

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Solution

The third proportional to 393,726 and 859,626 is: 1,876,830.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,726 : 859,626 = 859,626 : x
  2. Step 2: Convert to fraction form
    393,726/859,626 = 859,626/x
  3. Step 3: Cross multiply
    393,726x = 859,626 × 859,626
  4. Step 4: Simplify right side
    393,726x = 738,956,859,876
  5. Step 5: Solve for x
    x = 738,956,859,876/393,726
  6. Step 6: Final answer
    x = 1,876,830.23

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.