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Finding the Third Proportional to 641,166.25 and 1,393,453

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Solution

The third proportional to 641,166.25 and 1,393,453 is: 3,028,405.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,166.25 : 1,393,453 = 1,393,453 : x
  2. Step 2: Convert to fraction form
    641,166.25/1,393,453 = 1,393,453/x
  3. Step 3: Cross multiply
    641,166.25x = 1,393,453 × 1,393,453
  4. Step 4: Simplify right side
    641,166.25x = 1,941,711,263,209
  5. Step 5: Solve for x
    x = 1,941,711,263,209/641,166.25
  6. Step 6: Final answer
    x = 3,028,405.29

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.