Home / 386,600.89-533,273.39-255,778.33

Finding the Fourth Proportional to 386,600.89, 533,273.39 and 255,778.33

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Solution

The fourth proportional to 386,600.89, 533,273.39 and 255,778.33 is: 352,818.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,600.89 : 533,273.39 = 255,778.33 : x
  2. Step 2: Convert to fraction form
    386,600.89/533,273.39 = 255,778.33/x
  3. Step 3: Cross multiply
    386,600.89x = 533,273.39 × 255,778.33
  4. Step 4: Simplify right side
    386,600.89x = 136,399,775,100.72
  5. Step 5: Solve for x
    x = 136,399,775,100.72/386,600.89
  6. Step 6: Final answer
    x = 352,818.06

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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.