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Finding the Third Proportional to 646,801 and 1,360,628

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Solution

The third proportional to 646,801 and 1,360,628 is: 2,862,253.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,801 : 1,360,628 = 1,360,628 : x
  2. Step 2: Convert to fraction form
    646,801/1,360,628 = 1,360,628/x
  3. Step 3: Cross multiply
    646,801x = 1,360,628 × 1,360,628
  4. Step 4: Simplify right side
    646,801x = 1,851,308,554,384
  5. Step 5: Solve for x
    x = 1,851,308,554,384/646,801
  6. Step 6: Final answer
    x = 2,862,253.70

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.