Home / 410,128.56-616,067.16-386,158.80

Finding the Fourth Proportional to 410,128.56, 616,067.16 and 386,158.80

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Solution

The fourth proportional to 410,128.56, 616,067.16 and 386,158.80 is: 580,061.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,128.56 : 616,067.16 = 386,158.80 : x
  2. Step 2: Convert to fraction form
    410,128.56/616,067.16 = 386,158.80/x
  3. Step 3: Cross multiply
    410,128.56x = 616,067.16 × 386,158.80
  4. Step 4: Simplify right side
    410,128.56x = 237,899,755,225.01
  5. Step 5: Solve for x
    x = 237,899,755,225.01/410,128.56
  6. Step 6: Final answer
    x = 580,061.42

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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.