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Finding the Fourth Proportional to 326,138.82, 450,092.86 and 188,323.56

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Solution

The fourth proportional to 326,138.82, 450,092.86 and 188,323.56 is: 259,898.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,138.82 : 450,092.86 = 188,323.56 : x
  2. Step 2: Convert to fraction form
    326,138.82/450,092.86 = 188,323.56/x
  3. Step 3: Cross multiply
    326,138.82x = 450,092.86 × 188,323.56
  4. Step 4: Simplify right side
    326,138.82x = 84,763,089,725.78
  5. Step 5: Solve for x
    x = 84,763,089,725.78/326,138.82
  6. Step 6: Final answer
    x = 259,898.81

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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.