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Finding the Fourth Proportional to 481,343.80, 664,259.62 and 266,487.16

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Solution

The fourth proportional to 481,343.80, 664,259.62 and 266,487.16 is: 367,755.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,343.80 : 664,259.62 = 266,487.16 : x
  2. Step 2: Convert to fraction form
    481,343.80/664,259.62 = 266,487.16/x
  3. Step 3: Cross multiply
    481,343.80x = 664,259.62 × 266,487.16
  4. Step 4: Simplify right side
    481,343.80x = 177,016,659,636.48
  5. Step 5: Solve for x
    x = 177,016,659,636.48/481,343.80
  6. Step 6: Final answer
    x = 367,755.15

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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.