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Finding the Third Proportional to 393,231 and 860,053

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Solution

The third proportional to 393,231 and 860,053 is: 1,881,060.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,231 : 860,053 = 860,053 : x
  2. Step 2: Convert to fraction form
    393,231/860,053 = 860,053/x
  3. Step 3: Cross multiply
    393,231x = 860,053 × 860,053
  4. Step 4: Simplify right side
    393,231x = 739,691,162,809
  5. Step 5: Solve for x
    x = 739,691,162,809/393,231
  6. Step 6: Final answer
    x = 1,881,060.15

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.