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Finding the Fourth Proportional to 397,149.48, 595,890.30 and 172,698.70

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Solution

The fourth proportional to 397,149.48, 595,890.30 and 172,698.70 is: 259,120.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,149.48 : 595,890.30 = 172,698.70 : x
  2. Step 2: Convert to fraction form
    397,149.48/595,890.30 = 172,698.70/x
  3. Step 3: Cross multiply
    397,149.48x = 595,890.30 × 172,698.70
  4. Step 4: Simplify right side
    397,149.48x = 102,909,480,152.61
  5. Step 5: Solve for x
    x = 102,909,480,152.61/397,149.48
  6. Step 6: Final answer
    x = 259,120.27

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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.