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Finding the Fourth Proportional to 403,826.80, 605,630.84 and 119,516.80

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Solution

The fourth proportional to 403,826.80, 605,630.84 and 119,516.80 is: 179,242.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,826.80 : 605,630.84 = 119,516.80 : x
  2. Step 2: Convert to fraction form
    403,826.80/605,630.84 = 119,516.80/x
  3. Step 3: Cross multiply
    403,826.80x = 605,630.84 × 119,516.80
  4. Step 4: Simplify right side
    403,826.80x = 72,383,059,978.11
  5. Step 5: Solve for x
    x = 72,383,059,978.11/403,826.80
  6. Step 6: Final answer
    x = 179,242.83

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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.