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Finding the Fourth Proportional to 439,396.99, 606,359.82 and 248,410.43

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Solution

The fourth proportional to 439,396.99, 606,359.82 and 248,410.43 is: 342,801.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,396.99 : 606,359.82 = 248,410.43 : x
  2. Step 2: Convert to fraction form
    439,396.99/606,359.82 = 248,410.43/x
  3. Step 3: Cross multiply
    439,396.99x = 606,359.82 × 248,410.43
  4. Step 4: Simplify right side
    439,396.99x = 150,626,103,620.92
  5. Step 5: Solve for x
    x = 150,626,103,620.92/439,396.99
  6. Step 6: Final answer
    x = 342,801.86

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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.