Home / 381,819.60-571,951.80-194,936.40

Finding the Fourth Proportional to 381,819.60, 571,951.80 and 194,936.40

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Solution

The fourth proportional to 381,819.60, 571,951.80 and 194,936.40 is: 292,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,819.60 : 571,951.80 = 194,936.40 : x
  2. Step 2: Convert to fraction form
    381,819.60/571,951.80 = 194,936.40/x
  3. Step 3: Cross multiply
    381,819.60x = 571,951.80 × 194,936.40
  4. Step 4: Simplify right side
    381,819.60x = 111,494,224,865.52
  5. Step 5: Solve for x
    x = 111,494,224,865.52/381,819.60
  6. Step 6: Final answer
    x = 292,007.60

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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.