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Finding the Fourth Proportional to 352,198.86, 486,243.87 and 231,554.22

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Solution

The fourth proportional to 352,198.86, 486,243.87 and 231,554.22 is: 319,682.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,198.86 : 486,243.87 = 231,554.22 : x
  2. Step 2: Convert to fraction form
    352,198.86/486,243.87 = 231,554.22/x
  3. Step 3: Cross multiply
    352,198.86x = 486,243.87 × 231,554.22
  4. Step 4: Simplify right side
    352,198.86x = 112,591,820,047.63
  5. Step 5: Solve for x
    x = 112,591,820,047.63/352,198.86
  6. Step 6: Final answer
    x = 319,682.52

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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.