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Finding the Fourth Proportional to 481,470.40, 664,428.74 and 266,610.46

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Solution

The fourth proportional to 481,470.40, 664,428.74 and 266,610.46 is: 367,922.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,470.40 : 664,428.74 = 266,610.46 : x
  2. Step 2: Convert to fraction form
    481,470.40/664,428.74 = 266,610.46/x
  3. Step 3: Cross multiply
    481,470.40x = 664,428.74 × 266,610.46
  4. Step 4: Simplify right side
    481,470.40x = 177,143,652,008.62
  5. Step 5: Solve for x
    x = 177,143,652,008.62/481,470.40
  6. Step 6: Final answer
    x = 367,922.21

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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.