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Finding the Third Proportional to 638,632.50 and 1,064,346.75

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Solution

The third proportional to 638,632.50 and 1,064,346.75 is: 1,773,843.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,632.50 : 1,064,346.75 = 1,064,346.75 : x
  2. Step 2: Convert to fraction form
    638,632.50/1,064,346.75 = 1,064,346.75/x
  3. Step 3: Cross multiply
    638,632.50x = 1,064,346.75 × 1,064,346.75
  4. Step 4: Simplify right side
    638,632.50x = 1,132,834,004,235.56
  5. Step 5: Solve for x
    x = 1,132,834,004,235.56/638,632.50
  6. Step 6: Final answer
    x = 1,773,843.34

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.