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Finding the Fourth Proportional to 439,768.56, 606,882.87 and 248,777.94

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Solution

The fourth proportional to 439,768.56, 606,882.87 and 248,777.94 is: 343,314.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,768.56 : 606,882.87 = 248,777.94 : x
  2. Step 2: Convert to fraction form
    439,768.56/606,882.87 = 248,777.94/x
  3. Step 3: Cross multiply
    439,768.56x = 606,882.87 × 248,777.94
  4. Step 4: Simplify right side
    439,768.56x = 150,979,070,219.89
  5. Step 5: Solve for x
    x = 150,979,070,219.89/439,768.56
  6. Step 6: Final answer
    x = 343,314.83

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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.