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Finding the Fourth Proportional to 399,115.11, 550,606.08 and 244,073.21

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Solution

The fourth proportional to 399,115.11, 550,606.08 and 244,073.21 is: 336,715.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,115.11 : 550,606.08 = 244,073.21 : x
  2. Step 2: Convert to fraction form
    399,115.11/550,606.08 = 244,073.21/x
  3. Step 3: Cross multiply
    399,115.11x = 550,606.08 × 244,073.21
  4. Step 4: Simplify right side
    399,115.11x = 134,388,190,638.09
  5. Step 5: Solve for x
    x = 134,388,190,638.09/399,115.11
  6. Step 6: Final answer
    x = 336,715.37

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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.