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Finding the Fourth Proportional to 481,697.88, 664,734.38 and 266,837.28

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Solution

The fourth proportional to 481,697.88, 664,734.38 and 266,837.28 is: 368,230.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,697.88 : 664,734.38 = 266,837.28 : x
  2. Step 2: Convert to fraction form
    481,697.88/664,734.38 = 266,837.28/x
  3. Step 3: Cross multiply
    481,697.88x = 664,734.38 × 266,837.28
  4. Step 4: Simplify right side
    481,697.88x = 177,375,912,547.50
  5. Step 5: Solve for x
    x = 177,375,912,547.50/481,697.88
  6. Step 6: Final answer
    x = 368,230.63

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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.