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Finding the Fourth Proportional to 439,744.88, 606,861.48 and 248,754.80

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Solution

The fourth proportional to 439,744.88, 606,861.48 and 248,754.80 is: 343,289.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,744.88 : 606,861.48 = 248,754.80 : x
  2. Step 2: Convert to fraction form
    439,744.88/606,861.48 = 248,754.80/x
  3. Step 3: Cross multiply
    439,744.88x = 606,861.48 × 248,754.80
  4. Step 4: Simplify right side
    439,744.88x = 150,959,706,085.10
  5. Step 5: Solve for x
    x = 150,959,706,085.10/439,744.88
  6. Step 6: Final answer
    x = 343,289.29

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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.