Home / 347,812.74-479,980.89-196,923.78

Finding the Fourth Proportional to 347,812.74, 479,980.89 and 196,923.78

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Solution

The fourth proportional to 347,812.74, 479,980.89 and 196,923.78 is: 271,754.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,812.74 : 479,980.89 = 196,923.78 : x
  2. Step 2: Convert to fraction form
    347,812.74/479,980.89 = 196,923.78/x
  3. Step 3: Cross multiply
    347,812.74x = 479,980.89 × 196,923.78
  4. Step 4: Simplify right side
    347,812.74x = 94,519,651,186.56
  5. Step 5: Solve for x
    x = 94,519,651,186.56/347,812.74
  6. Step 6: Final answer
    x = 271,754.43

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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.