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Finding the Fourth Proportional to 397,310.45, 595,952.51 and 172,671.12

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Solution

The fourth proportional to 397,310.45, 595,952.51 and 172,671.12 is: 259,000.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,310.45 : 595,952.51 = 172,671.12 : x
  2. Step 2: Convert to fraction form
    397,310.45/595,952.51 = 172,671.12/x
  3. Step 3: Cross multiply
    397,310.45x = 595,952.51 × 172,671.12
  4. Step 4: Simplify right side
    397,310.45x = 102,903,786,505.16
  5. Step 5: Solve for x
    x = 102,903,786,505.16/397,310.45
  6. Step 6: Final answer
    x = 259,000.96

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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.