Home / 414,227.25-621,348.44-129,911.45

Finding the Fourth Proportional to 414,227.25, 621,348.44 and 129,911.45

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Solution

The fourth proportional to 414,227.25, 621,348.44 and 129,911.45 is: 194,869.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,227.25 : 621,348.44 = 129,911.45 : x
  2. Step 2: Convert to fraction form
    414,227.25/621,348.44 = 129,911.45/x
  3. Step 3: Cross multiply
    414,227.25x = 621,348.44 × 129,911.45
  4. Step 4: Simplify right side
    414,227.25x = 80,720,273,039.34
  5. Step 5: Solve for x
    x = 80,720,273,039.34/414,227.25
  6. Step 6: Final answer
    x = 194,869.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.