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Finding the Third Proportional to 859,439.74 and 1,821,331.04

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Solution

The third proportional to 859,439.74 and 1,821,331.04 is: 3,859,778.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,439.74 : 1,821,331.04 = 1,821,331.04 : x
  2. Step 2: Convert to fraction form
    859,439.74/1,821,331.04 = 1,821,331.04/x
  3. Step 3: Cross multiply
    859,439.74x = 1,821,331.04 × 1,821,331.04
  4. Step 4: Simplify right side
    859,439.74x = 3,317,246,746,738.00
  5. Step 5: Solve for x
    x = 3,317,246,746,738.00/859,439.74
  6. Step 6: Final answer
    x = 3,859,778.16

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.