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Finding the Fourth Proportional to 441,287.17, 661,930.74 and 308,426.92

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Solution

The fourth proportional to 441,287.17, 661,930.74 and 308,426.92 is: 462,640.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,287.17 : 661,930.74 = 308,426.92 : x
  2. Step 2: Convert to fraction form
    441,287.17/661,930.74 = 308,426.92/x
  3. Step 3: Cross multiply
    441,287.17x = 661,930.74 × 308,426.92
  4. Step 4: Simplify right side
    441,287.17x = 204,157,257,736.69
  5. Step 5: Solve for x
    x = 204,157,257,736.69/441,287.17
  6. Step 6: Final answer
    x = 462,640.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.