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Finding the Third Proportional to 207,420.75 and 452,383.50

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Solution

The third proportional to 207,420.75 and 452,383.50 is: 986,645.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,420.75 : 452,383.50 = 452,383.50 : x
  2. Step 2: Convert to fraction form
    207,420.75/452,383.50 = 452,383.50/x
  3. Step 3: Cross multiply
    207,420.75x = 452,383.50 × 452,383.50
  4. Step 4: Simplify right side
    207,420.75x = 204,650,831,072.25
  5. Step 5: Solve for x
    x = 204,650,831,072.25/207,420.75
  6. Step 6: Final answer
    x = 986,645.89

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.