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Finding the Third Proportional to 811,636.88 and 1,261,664.44

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Solution

The third proportional to 811,636.88 and 1,261,664.44 is: 1,961,218.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,636.88 : 1,261,664.44 = 1,261,664.44 : x
  2. Step 2: Convert to fraction form
    811,636.88/1,261,664.44 = 1,261,664.44/x
  3. Step 3: Cross multiply
    811,636.88x = 1,261,664.44 × 1,261,664.44
  4. Step 4: Simplify right side
    811,636.88x = 1,591,797,152,852.19
  5. Step 5: Solve for x
    x = 1,591,797,152,852.19/811,636.88
  6. Step 6: Final answer
    x = 1,961,218.37

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.