Home / 665,819.56-998,777.94-192,507.40

Finding the Fourth Proportional to 665,819.56, 998,777.94 and 192,507.40

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Solution

The fourth proportional to 665,819.56, 998,777.94 and 192,507.40 is: 288,775.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,819.56 : 998,777.94 = 192,507.40 : x
  2. Step 2: Convert to fraction form
    665,819.56/998,777.94 = 192,507.40/x
  3. Step 3: Cross multiply
    665,819.56x = 998,777.94 × 192,507.40
  4. Step 4: Simplify right side
    665,819.56x = 192,272,144,406.76
  5. Step 5: Solve for x
    x = 192,272,144,406.76/665,819.56
  6. Step 6: Final answer
    x = 288,775.15

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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.