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Finding the Fourth Proportional to 494,391.12, 741,587.04 and 120,410.88

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Solution

The fourth proportional to 494,391.12, 741,587.04 and 120,410.88 is: 180,616.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,391.12 : 741,587.04 = 120,410.88 : x
  2. Step 2: Convert to fraction form
    494,391.12/741,587.04 = 120,410.88/x
  3. Step 3: Cross multiply
    494,391.12x = 741,587.04 × 120,410.88
  4. Step 4: Simplify right side
    494,391.12x = 89,295,148,083.00
  5. Step 5: Solve for x
    x = 89,295,148,083.00/494,391.12
  6. Step 6: Final answer
    x = 180,616.41

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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.