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Finding the Third Proportional to 515,492 and 1,135,636

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Solution

The third proportional to 515,492 and 1,135,636 is: 2,501,821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,492 : 1,135,636 = 1,135,636 : x
  2. Step 2: Convert to fraction form
    515,492/1,135,636 = 1,135,636/x
  3. Step 3: Cross multiply
    515,492x = 1,135,636 × 1,135,636
  4. Step 4: Simplify right side
    515,492x = 1,289,669,124,496
  5. Step 5: Solve for x
    x = 1,289,669,124,496/515,492
  6. Step 6: Final answer
    x = 2,501,821.80

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.