Home / 381,664.40-572,035.80-194,579.60

Finding the Fourth Proportional to 381,664.40, 572,035.80 and 194,579.60

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Solution

The fourth proportional to 381,664.40, 572,035.80 and 194,579.60 is: 291,634.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,664.40 : 572,035.80 = 194,579.60 : x
  2. Step 2: Convert to fraction form
    381,664.40/572,035.80 = 194,579.60/x
  3. Step 3: Cross multiply
    381,664.40x = 572,035.80 × 194,579.60
  4. Step 4: Simplify right side
    381,664.40x = 111,306,497,149.68
  5. Step 5: Solve for x
    x = 111,306,497,149.68/381,664.40
  6. Step 6: Final answer
    x = 291,634.48

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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.