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Finding the Fourth Proportional to 439,755.86, 606,876.63 and 248,765.42

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Solution

The fourth proportional to 439,755.86, 606,876.63 and 248,765.42 is: 343,303.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,755.86 : 606,876.63 = 248,765.42 : x
  2. Step 2: Convert to fraction form
    439,755.86/606,876.63 = 248,765.42/x
  3. Step 3: Cross multiply
    439,755.86x = 606,876.63 × 248,765.42
  4. Step 4: Simplify right side
    439,755.86x = 150,969,919,750.14
  5. Step 5: Solve for x
    x = 150,969,919,750.14/439,755.86
  6. Step 6: Final answer
    x = 343,303.94

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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.