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Finding the Third Proportional to 399,787.88 and 874,310.06

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Solution

The third proportional to 399,787.88 and 874,310.06 is: 1,912,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,787.88 : 874,310.06 = 874,310.06 : x
  2. Step 2: Convert to fraction form
    399,787.88/874,310.06 = 874,310.06/x
  3. Step 3: Cross multiply
    399,787.88x = 874,310.06 × 874,310.06
  4. Step 4: Simplify right side
    399,787.88x = 764,418,085,388.75
  5. Step 5: Solve for x
    x = 764,418,085,388.75/399,787.88
  6. Step 6: Final answer
    x = 1,912,059.20

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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.