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Finding the Fourth Proportional to 449,073.26, 619,736.11 and 245,136.27

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Solution

The fourth proportional to 449,073.26, 619,736.11 and 245,136.27 is: 338,296.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,073.26 : 619,736.11 = 245,136.27 : x
  2. Step 2: Convert to fraction form
    449,073.26/619,736.11 = 245,136.27/x
  3. Step 3: Cross multiply
    449,073.26x = 619,736.11 × 245,136.27
  4. Step 4: Simplify right side
    449,073.26x = 151,919,801,479.77
  5. Step 5: Solve for x
    x = 151,919,801,479.77/449,073.26
  6. Step 6: Final answer
    x = 338,296.25

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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.