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Finding the Third Proportional to 481,172 and 672,705

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Solution

The third proportional to 481,172 and 672,705 is: 940,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,172 : 672,705 = 672,705 : x
  2. Step 2: Convert to fraction form
    481,172/672,705 = 672,705/x
  3. Step 3: Cross multiply
    481,172x = 672,705 × 672,705
  4. Step 4: Simplify right side
    481,172x = 452,532,017,025
  5. Step 5: Solve for x
    x = 452,532,017,025/481,172
  6. Step 6: Final answer
    x = 940,478.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.