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Finding the Fourth Proportional to 271,221.30, 406,536.39 and 231,658.38

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Solution

The fourth proportional to 271,221.30, 406,536.39 and 231,658.38 is: 347,235.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,221.30 : 406,536.39 = 231,658.38 : x
  2. Step 2: Convert to fraction form
    271,221.30/406,536.39 = 231,658.38/x
  3. Step 3: Cross multiply
    271,221.30x = 406,536.39 × 231,658.38
  4. Step 4: Simplify right side
    271,221.30x = 94,177,561,518.45
  5. Step 5: Solve for x
    x = 94,177,561,518.45/271,221.30
  6. Step 6: Final answer
    x = 347,235.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.