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Finding the Fourth Proportional to 617,252.72, 925,953.06 and 217,811

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Solution

The fourth proportional to 617,252.72, 925,953.06 and 217,811 is: 326,742.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,252.72 : 925,953.06 = 217,811 : x
  2. Step 2: Convert to fraction form
    617,252.72/925,953.06 = 217,811/x
  3. Step 3: Cross multiply
    617,252.72x = 925,953.06 × 217,811
  4. Step 4: Simplify right side
    617,252.72x = 201,682,761,951.66
  5. Step 5: Solve for x
    x = 201,682,761,951.66/617,252.72
  6. Step 6: Final answer
    x = 326,742.61

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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.