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Finding the Fourth Proportional to 481,561.50, 664,557.09 and 266,697.06

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Solution

The fourth proportional to 481,561.50, 664,557.09 and 266,697.06 is: 368,043.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,561.50 : 664,557.09 = 266,697.06 : x
  2. Step 2: Convert to fraction form
    481,561.50/664,557.09 = 266,697.06/x
  3. Step 3: Cross multiply
    481,561.50x = 664,557.09 × 266,697.06
  4. Step 4: Simplify right side
    481,561.50x = 177,235,422,105.16
  5. Step 5: Solve for x
    x = 177,235,422,105.16/481,561.50
  6. Step 6: Final answer
    x = 368,043.17

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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.