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Finding the Third Proportional to 408,510 and 865,596

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Solution

The third proportional to 408,510 and 865,596 is: 1,834,120.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,510 : 865,596 = 865,596 : x
  2. Step 2: Convert to fraction form
    408,510/865,596 = 865,596/x
  3. Step 3: Cross multiply
    408,510x = 865,596 × 865,596
  4. Step 4: Simplify right side
    408,510x = 749,256,435,216
  5. Step 5: Solve for x
    x = 749,256,435,216/408,510
  6. Step 6: Final answer
    x = 1,834,120.18

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.