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Finding the Fourth Proportional to 439,791.21, 606,969.11 and 246,272.61

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Solution

The fourth proportional to 439,791.21, 606,969.11 and 246,272.61 is: 339,888.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,791.21 : 606,969.11 = 246,272.61 : x
  2. Step 2: Convert to fraction form
    439,791.21/606,969.11 = 246,272.61/x
  3. Step 3: Cross multiply
    439,791.21x = 606,969.11 × 246,272.61
  4. Step 4: Simplify right side
    439,791.21x = 149,479,865,677.71
  5. Step 5: Solve for x
    x = 149,479,865,677.71/439,791.21
  6. Step 6: Final answer
    x = 339,888.25

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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.