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Finding the Fourth Proportional to 481,372.74, 664,299.63 and 266,516.60

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Solution

The fourth proportional to 481,372.74, 664,299.63 and 266,516.60 is: 367,795.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,372.74 : 664,299.63 = 266,516.60 : x
  2. Step 2: Convert to fraction form
    481,372.74/664,299.63 = 266,516.60/x
  3. Step 3: Cross multiply
    481,372.74x = 664,299.63 × 266,516.60
  4. Step 4: Simplify right side
    481,372.74x = 177,046,875,447.36
  5. Step 5: Solve for x
    x = 177,046,875,447.36/481,372.74
  6. Step 6: Final answer
    x = 367,795.81

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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.