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Finding the Fourth Proportional to 422,618.46, 633,694.41 and 173,475.42

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Solution

The fourth proportional to 422,618.46, 633,694.41 and 173,475.42 is: 260,117.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,618.46 : 633,694.41 = 173,475.42 : x
  2. Step 2: Convert to fraction form
    422,618.46/633,694.41 = 173,475.42/x
  3. Step 3: Cross multiply
    422,618.46x = 633,694.41 × 173,475.42
  4. Step 4: Simplify right side
    422,618.46x = 109,930,403,926.40
  5. Step 5: Solve for x
    x = 109,930,403,926.40/422,618.46
  6. Step 6: Final answer
    x = 260,117.37

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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.