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Finding the Fourth Proportional to 485,954.70, 728,977.41 and 182,267.88

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Solution

The fourth proportional to 485,954.70, 728,977.41 and 182,267.88 is: 273,418.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,954.70 : 728,977.41 = 182,267.88 : x
  2. Step 2: Convert to fraction form
    485,954.70/728,977.41 = 182,267.88/x
  3. Step 3: Cross multiply
    485,954.70x = 728,977.41 × 182,267.88
  4. Step 4: Simplify right side
    485,954.70x = 132,869,167,088.59
  5. Step 5: Solve for x
    x = 132,869,167,088.59/485,954.70
  6. Step 6: Final answer
    x = 273,418.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.