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Finding the Fourth Proportional to 326,886.80, 451,140.39 and 197,896.37

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Solution

The fourth proportional to 326,886.80, 451,140.39 and 197,896.37 is: 273,119.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,886.80 : 451,140.39 = 197,896.37 : x
  2. Step 2: Convert to fraction form
    326,886.80/451,140.39 = 197,896.37/x
  3. Step 3: Cross multiply
    326,886.80x = 451,140.39 × 197,896.37
  4. Step 4: Simplify right side
    326,886.80x = 89,279,043,285.68
  5. Step 5: Solve for x
    x = 89,279,043,285.68/326,886.80
  6. Step 6: Final answer
    x = 273,119.15

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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.