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Finding the Fourth Proportional to 486,794.31, 671,763.02 and 266,022.88

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Solution

The fourth proportional to 486,794.31, 671,763.02 and 266,022.88 is: 367,104.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,794.31 : 671,763.02 = 266,022.88 : x
  2. Step 2: Convert to fraction form
    486,794.31/671,763.02 = 266,022.88/x
  3. Step 3: Cross multiply
    486,794.31x = 671,763.02 × 266,022.88
  4. Step 4: Simplify right side
    486,794.31x = 178,704,335,523.42
  5. Step 5: Solve for x
    x = 178,704,335,523.42/486,794.31
  6. Step 6: Final answer
    x = 367,104.41

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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.