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Finding the Third Proportional to 621,454 and 959,655

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Solution

The third proportional to 621,454 and 959,655 is: 1,481,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,454 : 959,655 = 959,655 : x
  2. Step 2: Convert to fraction form
    621,454/959,655 = 959,655/x
  3. Step 3: Cross multiply
    621,454x = 959,655 × 959,655
  4. Step 4: Simplify right side
    621,454x = 920,937,719,025
  5. Step 5: Solve for x
    x = 920,937,719,025/621,454
  6. Step 6: Final answer
    x = 1,481,908.10

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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.