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Finding the Fourth Proportional to 481,303.56, 664,177.38 and 266,428.44

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Solution

The fourth proportional to 481,303.56, 664,177.38 and 266,428.44 is: 367,659.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,303.56 : 664,177.38 = 266,428.44 : x
  2. Step 2: Convert to fraction form
    481,303.56/664,177.38 = 266,428.44/x
  3. Step 3: Cross multiply
    481,303.56x = 664,177.38 × 266,428.44
  4. Step 4: Simplify right side
    481,303.56x = 176,955,743,236.69
  5. Step 5: Solve for x
    x = 176,955,743,236.69/481,303.56
  6. Step 6: Final answer
    x = 367,659.33

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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.