Home / 665,962.43-998,777.57-261,236.89

Finding the Fourth Proportional to 665,962.43, 998,777.57 and 261,236.89

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Solution

The fourth proportional to 665,962.43, 998,777.57 and 261,236.89 is: 391,790.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,962.43 : 998,777.57 = 261,236.89 : x
  2. Step 2: Convert to fraction form
    665,962.43/998,777.57 = 261,236.89/x
  3. Step 3: Cross multiply
    665,962.43x = 998,777.57 × 261,236.89
  4. Step 4: Simplify right side
    665,962.43x = 260,917,542,385.43
  5. Step 5: Solve for x
    x = 260,917,542,385.43/665,962.43
  6. Step 6: Final answer
    x = 391,790.18

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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.