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Finding the Fourth Proportional to 422,622.46, 633,700.41 and 173,479.42

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Solution

The fourth proportional to 422,622.46, 633,700.41 and 173,479.42 is: 260,123.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,622.46 : 633,700.41 = 173,479.42 : x
  2. Step 2: Convert to fraction form
    422,622.46/633,700.41 = 173,479.42/x
  3. Step 3: Cross multiply
    422,622.46x = 633,700.41 × 173,479.42
  4. Step 4: Simplify right side
    422,622.46x = 109,933,979,580.56
  5. Step 5: Solve for x
    x = 109,933,979,580.56/422,622.46
  6. Step 6: Final answer
    x = 260,123.37

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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.