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Finding the Fourth Proportional to 439,076.88, 605,879.73 and 248,053.38

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Solution

The fourth proportional to 439,076.88, 605,879.73 and 248,053.38 is: 342,287.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,076.88 : 605,879.73 = 248,053.38 : x
  2. Step 2: Convert to fraction form
    439,076.88/605,879.73 = 248,053.38/x
  3. Step 3: Cross multiply
    439,076.88x = 605,879.73 × 248,053.38
  4. Step 4: Simplify right side
    439,076.88x = 150,290,514,899.99
  5. Step 5: Solve for x
    x = 150,290,514,899.99/439,076.88
  6. Step 6: Final answer
    x = 342,287.47

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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.