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Finding the Fourth Proportional to 422,684.28, 633,671.04 and 197,926.28

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Solution

The fourth proportional to 422,684.28, 633,671.04 and 197,926.28 is: 296,723.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,684.28 : 633,671.04 = 197,926.28 : x
  2. Step 2: Convert to fraction form
    422,684.28/633,671.04 = 197,926.28/x
  3. Step 3: Cross multiply
    422,684.28x = 633,671.04 × 197,926.28
  4. Step 4: Simplify right side
    422,684.28x = 125,420,151,690.93
  5. Step 5: Solve for x
    x = 125,420,151,690.93/422,684.28
  6. Step 6: Final answer
    x = 296,723.01

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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.