Home / 665,861.40-998,921.70-192,562.20

Finding the Fourth Proportional to 665,861.40, 998,921.70 and 192,562.20

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Solution

The fourth proportional to 665,861.40, 998,921.70 and 192,562.20 is: 288,880.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,861.40 : 998,921.70 = 192,562.20 : x
  2. Step 2: Convert to fraction form
    665,861.40/998,921.70 = 192,562.20/x
  3. Step 3: Cross multiply
    665,861.40x = 998,921.70 × 192,562.20
  4. Step 4: Simplify right side
    665,861.40x = 192,354,560,179.74
  5. Step 5: Solve for x
    x = 192,354,560,179.74/665,861.40
  6. Step 6: Final answer
    x = 288,880.78

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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.