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Finding the Fourth Proportional to 386,504.94, 579,761.87 and 116,635.42

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Solution

The fourth proportional to 386,504.94, 579,761.87 and 116,635.42 is: 174,954.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,504.94 : 579,761.87 = 116,635.42 : x
  2. Step 2: Convert to fraction form
    386,504.94/579,761.87 = 116,635.42/x
  3. Step 3: Cross multiply
    386,504.94x = 579,761.87 × 116,635.42
  4. Step 4: Simplify right side
    386,504.94x = 67,620,769,207.44
  5. Step 5: Solve for x
    x = 67,620,769,207.44/386,504.94
  6. Step 6: Final answer
    x = 174,954.48

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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.