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Finding the Third Proportional to 438,691.50 and 942,669

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Solution

The third proportional to 438,691.50 and 942,669 is: 2,025,625.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,691.50 : 942,669 = 942,669 : x
  2. Step 2: Convert to fraction form
    438,691.50/942,669 = 942,669/x
  3. Step 3: Cross multiply
    438,691.50x = 942,669 × 942,669
  4. Step 4: Simplify right side
    438,691.50x = 888,624,843,561
  5. Step 5: Solve for x
    x = 888,624,843,561/438,691.50
  6. Step 6: Final answer
    x = 2,025,625.85

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.