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Finding the Fourth Proportional to 323,786.50, 446,825.37 and 189,650.50

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Solution

The fourth proportional to 323,786.50, 446,825.37 and 189,650.50 is: 261,717.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,786.50 : 446,825.37 = 189,650.50 : x
  2. Step 2: Convert to fraction form
    323,786.50/446,825.37 = 189,650.50/x
  3. Step 3: Cross multiply
    323,786.50x = 446,825.37 × 189,650.50
  4. Step 4: Simplify right side
    323,786.50x = 84,740,654,833.19
  5. Step 5: Solve for x
    x = 84,740,654,833.19/323,786.50
  6. Step 6: Final answer
    x = 261,717.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.