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Finding the Fourth Proportional to 397,311.46, 595,953.99 and 172,672.12

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Solution

The fourth proportional to 397,311.46, 595,953.99 and 172,672.12 is: 259,002.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,311.46 : 595,953.99 = 172,672.12 : x
  2. Step 2: Convert to fraction form
    397,311.46/595,953.99 = 172,672.12/x
  3. Step 3: Cross multiply
    397,311.46x = 595,953.99 × 172,672.12
  4. Step 4: Simplify right side
    397,311.46x = 102,904,638,875.76
  5. Step 5: Solve for x
    x = 102,904,638,875.76/397,311.46
  6. Step 6: Final answer
    x = 259,002.44

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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.