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Finding the Fourth Proportional to 422,251.17, 582,706.26 and 228,658.79

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Solution

The fourth proportional to 422,251.17, 582,706.26 and 228,658.79 is: 315,548.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,251.17 : 582,706.26 = 228,658.79 : x
  2. Step 2: Convert to fraction form
    422,251.17/582,706.26 = 228,658.79/x
  3. Step 3: Cross multiply
    422,251.17x = 582,706.26 × 228,658.79
  4. Step 4: Simplify right side
    422,251.17x = 133,240,905,423.49
  5. Step 5: Solve for x
    x = 133,240,905,423.49/422,251.17
  6. Step 6: Final answer
    x = 315,548.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.