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Finding the Fourth Proportional to 481,662.32, 664,693.97 and 266,816.30

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Solution

The fourth proportional to 481,662.32, 664,693.97 and 266,816.30 is: 368,206.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,662.32 : 664,693.97 = 266,816.30 : x
  2. Step 2: Convert to fraction form
    481,662.32/664,693.97 = 266,816.30/x
  3. Step 3: Cross multiply
    481,662.32x = 664,693.97 × 266,816.30
  4. Step 4: Simplify right side
    481,662.32x = 177,351,181,050.16
  5. Step 5: Solve for x
    x = 177,351,181,050.16/481,662.32
  6. Step 6: Final answer
    x = 368,206.47

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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.