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Finding the Fourth Proportional to 484,021.17, 667,965.49 and 266,239.10

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Solution

The fourth proportional to 484,021.17, 667,965.49 and 266,239.10 is: 367,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,021.17 : 667,965.49 = 266,239.10 : x
  2. Step 2: Convert to fraction form
    484,021.17/667,965.49 = 266,239.10/x
  3. Step 3: Cross multiply
    484,021.17x = 667,965.49 × 266,239.10
  4. Step 4: Simplify right side
    484,021.17x = 177,838,531,892.98
  5. Step 5: Solve for x
    x = 177,838,531,892.98/484,021.17
  6. Step 6: Final answer
    x = 367,418.91

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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.