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Finding the Fourth Proportional to 481,398.50, 664,334.45 and 266,543.17

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Solution

The fourth proportional to 481,398.50, 664,334.45 and 266,543.17 is: 367,832.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,398.50 : 664,334.45 = 266,543.17 : x
  2. Step 2: Convert to fraction form
    481,398.50/664,334.45 = 266,543.17/x
  3. Step 3: Cross multiply
    481,398.50x = 664,334.45 × 266,543.17
  4. Step 4: Simplify right side
    481,398.50x = 177,073,810,243.21
  5. Step 5: Solve for x
    x = 177,073,810,243.21/481,398.50
  6. Step 6: Final answer
    x = 367,832.08

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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.