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Finding the Fourth Proportional to 347,151.36, 479,057.92 and 196,239.36

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Solution

The fourth proportional to 347,151.36, 479,057.92 and 196,239.36 is: 270,804.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,151.36 : 479,057.92 = 196,239.36 : x
  2. Step 2: Convert to fraction form
    347,151.36/479,057.92 = 196,239.36/x
  3. Step 3: Cross multiply
    347,151.36x = 479,057.92 × 196,239.36
  4. Step 4: Simplify right side
    347,151.36x = 94,010,019,623.73
  5. Step 5: Solve for x
    x = 94,010,019,623.73/347,151.36
  6. Step 6: Final answer
    x = 270,804.12

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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.