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Finding the Fourth Proportional to 486,793.44, 671,726.64 and 271,928.88

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Solution

The fourth proportional to 486,793.44, 671,726.64 and 271,928.88 is: 375,234.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,793.44 : 671,726.64 = 271,928.88 : x
  2. Step 2: Convert to fraction form
    486,793.44/671,726.64 = 271,928.88/x
  3. Step 3: Cross multiply
    486,793.44x = 671,726.64 × 271,928.88
  4. Step 4: Simplify right side
    486,793.44x = 182,661,872,881.36
  5. Step 5: Solve for x
    x = 182,661,872,881.36/486,793.44
  6. Step 6: Final answer
    x = 375,234.87

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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.