Home / 347,769.90-479,928.51-194,806.80

Finding the Fourth Proportional to 347,769.90, 479,928.51 and 194,806.80

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Solution

The fourth proportional to 347,769.90, 479,928.51 and 194,806.80 is: 268,836.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,769.90 : 479,928.51 = 194,806.80 : x
  2. Step 2: Convert to fraction form
    347,769.90/479,928.51 = 194,806.80/x
  3. Step 3: Cross multiply
    347,769.90x = 479,928.51 × 194,806.80
  4. Step 4: Simplify right side
    347,769.90x = 93,493,337,261.87
  5. Step 5: Solve for x
    x = 93,493,337,261.87/347,769.90
  6. Step 6: Final answer
    x = 268,836.77

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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.