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Finding the Fourth Proportional to 330,198, 455,673.24 and 179,295

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Solution

The fourth proportional to 330,198, 455,673.24 and 179,295 is: 247,427.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,198 : 455,673.24 = 179,295 : x
  2. Step 2: Convert to fraction form
    330,198/455,673.24 = 179,295/x
  3. Step 3: Cross multiply
    330,198x = 455,673.24 × 179,295
  4. Step 4: Simplify right side
    330,198x = 81,699,933,565.80
  5. Step 5: Solve for x
    x = 81,699,933,565.80/330,198
  6. Step 6: Final answer
    x = 247,427.10

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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.