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Finding the Fourth Proportional to 326,887.74, 451,139.81 and 197,896.68

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Solution

The fourth proportional to 326,887.74, 451,139.81 and 197,896.68 is: 273,118.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,887.74 : 451,139.81 = 197,896.68 : x
  2. Step 2: Convert to fraction form
    326,887.74/451,139.81 = 197,896.68/x
  3. Step 3: Cross multiply
    326,887.74x = 451,139.81 × 197,896.68
  4. Step 4: Simplify right side
    326,887.74x = 89,279,069,625.35
  5. Step 5: Solve for x
    x = 89,279,069,625.35/326,887.74
  6. Step 6: Final answer
    x = 273,118.44

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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.