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Finding the Fourth Proportional to 617,233.98, 925,658.79 and 217,781.16

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Solution

The fourth proportional to 617,233.98, 925,658.79 and 217,781.16 is: 326,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,233.98 : 925,658.79 = 217,781.16 : x
  2. Step 2: Convert to fraction form
    617,233.98/925,658.79 = 217,781.16/x
  3. Step 3: Cross multiply
    617,233.98x = 925,658.79 × 217,781.16
  4. Step 4: Simplify right side
    617,233.98x = 201,591,047,704.94
  5. Step 5: Solve for x
    x = 201,591,047,704.94/617,233.98
  6. Step 6: Final answer
    x = 326,603.94

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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.