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Finding the Fourth Proportional to 441,839.81, 609,687.61 and 248,220.65

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Solution

The fourth proportional to 441,839.81, 609,687.61 and 248,220.65 is: 342,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,839.81 : 609,687.61 = 248,220.65 : x
  2. Step 2: Convert to fraction form
    441,839.81/609,687.61 = 248,220.65/x
  3. Step 3: Cross multiply
    441,839.81x = 609,687.61 × 248,220.65
  4. Step 4: Simplify right side
    441,839.81x = 151,337,055,754.81
  5. Step 5: Solve for x
    x = 151,337,055,754.81/441,839.81
  6. Step 6: Final answer
    x = 342,515.66

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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.