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Finding the Fourth Proportional to 494,804.26, 682,911.54 and 339,628.03

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Solution

The fourth proportional to 494,804.26, 682,911.54 and 339,628.03 is: 468,742.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,804.26 : 682,911.54 = 339,628.03 : x
  2. Step 2: Convert to fraction form
    494,804.26/682,911.54 = 339,628.03/x
  3. Step 3: Cross multiply
    494,804.26x = 682,911.54 × 339,628.03
  4. Step 4: Simplify right side
    494,804.26x = 231,935,899,287.19
  5. Step 5: Solve for x
    x = 231,935,899,287.19/494,804.26
  6. Step 6: Final answer
    x = 468,742.73

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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.