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Finding the Fourth Proportional to 481,456.37, 664,401.65 and 266,591.81

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Solution

The fourth proportional to 481,456.37, 664,401.65 and 266,591.81 is: 367,892.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,456.37 : 664,401.65 = 266,591.81 : x
  2. Step 2: Convert to fraction form
    481,456.37/664,401.65 = 266,591.81/x
  3. Step 3: Cross multiply
    481,456.37x = 664,401.65 × 266,591.81
  4. Step 4: Simplify right side
    481,456.37x = 177,124,033,785.52
  5. Step 5: Solve for x
    x = 177,124,033,785.52/481,456.37
  6. Step 6: Final answer
    x = 367,892.18

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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.