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Finding the Fourth Proportional to 481,678.82, 664,716.74 and 266,832.80

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Solution

The fourth proportional to 481,678.82, 664,716.74 and 266,832.80 is: 368,229.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,678.82 : 664,716.74 = 266,832.80 : x
  2. Step 2: Convert to fraction form
    481,678.82/664,716.74 = 266,832.80/x
  3. Step 3: Cross multiply
    481,678.82x = 664,716.74 × 266,832.80
  4. Step 4: Simplify right side
    481,678.82x = 177,368,224,283.32
  5. Step 5: Solve for x
    x = 177,368,224,283.32/481,678.82
  6. Step 6: Final answer
    x = 368,229.24

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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.