Home / 812,229.27-1,120,993.70-467,999.28

Finding the Fourth Proportional to 812,229.27, 1,120,993.70 and 467,999.28

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Solution

The fourth proportional to 812,229.27, 1,120,993.70 and 467,999.28 is: 645,906.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,229.27 : 1,120,993.70 = 467,999.28 : x
  2. Step 2: Convert to fraction form
    812,229.27/1,120,993.70 = 467,999.28/x
  3. Step 3: Cross multiply
    812,229.27x = 1,120,993.70 × 467,999.28
  4. Step 4: Simplify right side
    812,229.27x = 524,624,242,144.54
  5. Step 5: Solve for x
    x = 524,624,242,144.54/812,229.27
  6. Step 6: Final answer
    x = 645,906.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.