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Finding the Third Proportional to 621,515 and 959,745

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Solution

The third proportional to 621,515 and 959,745 is: 1,482,040.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,515 : 959,745 = 959,745 : x
  2. Step 2: Convert to fraction form
    621,515/959,745 = 959,745/x
  3. Step 3: Cross multiply
    621,515x = 959,745 × 959,745
  4. Step 4: Simplify right side
    621,515x = 921,110,465,025
  5. Step 5: Solve for x
    x = 921,110,465,025/621,515
  6. Step 6: Final answer
    x = 1,482,040.60

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.