Home / 1,086,404.20-1,628,958.30-665,981.80

Finding the Fourth Proportional to 1,086,404.20, 1,628,958.30 and 665,981.80

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Solution

The fourth proportional to 1,086,404.20, 1,628,958.30 and 665,981.80 is: 998,575.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,404.20 : 1,628,958.30 = 665,981.80 : x
  2. Step 2: Convert to fraction form
    1,086,404.20/1,628,958.30 = 665,981.80/x
  3. Step 3: Cross multiply
    1,086,404.20x = 1,628,958.30 × 665,981.80
  4. Step 4: Simplify right side
    1,086,404.20x = 1,084,856,580,758.94
  5. Step 5: Solve for x
    x = 1,084,856,580,758.94/1,086,404.20
  6. Step 6: Final answer
    x = 998,575.47

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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.