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Finding the Fourth Proportional to 617,197.95, 925,607.40 and 217,745.31

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Solution

The fourth proportional to 617,197.95, 925,607.40 and 217,745.31 is: 326,551.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,197.95 : 925,607.40 = 217,745.31 : x
  2. Step 2: Convert to fraction form
    617,197.95/925,607.40 = 217,745.31/x
  3. Step 3: Cross multiply
    617,197.95x = 925,607.40 × 217,745.31
  4. Step 4: Simplify right side
    617,197.95x = 201,546,670,251.29
  5. Step 5: Solve for x
    x = 201,546,670,251.29/617,197.95
  6. Step 6: Final answer
    x = 326,551.10

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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.