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Finding the Fourth Proportional to 422,622.52, 633,733.10 and 245,183.92

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Solution

The fourth proportional to 422,622.52, 633,733.10 and 245,183.92 is: 367,659.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,622.52 : 633,733.10 = 245,183.92 : x
  2. Step 2: Convert to fraction form
    422,622.52/633,733.10 = 245,183.92/x
  3. Step 3: Cross multiply
    422,622.52x = 633,733.10 × 245,183.92
  4. Step 4: Simplify right side
    422,622.52x = 155,381,163,800.94
  5. Step 5: Solve for x
    x = 155,381,163,800.94/422,622.52
  6. Step 6: Final answer
    x = 367,659.45

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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.