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Finding the Fourth Proportional to 486,794.19, 671,772.78 and 271,932.36

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Solution

The fourth proportional to 486,794.19, 671,772.78 and 271,932.36 is: 375,264.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,794.19 : 671,772.78 = 271,932.36 : x
  2. Step 2: Convert to fraction form
    486,794.19/671,772.78 = 271,932.36/x
  3. Step 3: Cross multiply
    486,794.19x = 671,772.78 × 271,932.36
  4. Step 4: Simplify right side
    486,794.19x = 182,676,757,449.16
  5. Step 5: Solve for x
    x = 182,676,757,449.16/486,794.19
  6. Step 6: Final answer
    x = 375,264.87

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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.