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Finding the Third Proportional to 412,216 and 655,726

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Solution

The third proportional to 412,216 and 655,726 is: 1,043,085.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,216 : 655,726 = 655,726 : x
  2. Step 2: Convert to fraction form
    412,216/655,726 = 655,726/x
  3. Step 3: Cross multiply
    412,216x = 655,726 × 655,726
  4. Step 4: Simplify right side
    412,216x = 429,976,587,076
  5. Step 5: Solve for x
    x = 429,976,587,076/412,216
  6. Step 6: Final answer
    x = 1,043,085.63

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.