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Finding the Third Proportional to 921,208.50 and 1,993,315.50

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Solution

The third proportional to 921,208.50 and 1,993,315.50 is: 4,313,145.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,208.50 : 1,993,315.50 = 1,993,315.50 : x
  2. Step 2: Convert to fraction form
    921,208.50/1,993,315.50 = 1,993,315.50/x
  3. Step 3: Cross multiply
    921,208.50x = 1,993,315.50 × 1,993,315.50
  4. Step 4: Simplify right side
    921,208.50x = 3,973,306,682,540.25
  5. Step 5: Solve for x
    x = 3,973,306,682,540.25/921,208.50
  6. Step 6: Final answer
    x = 4,313,145.92

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.