Home / 1,086,401.70-1,628,954.55-665,979.30

Finding the Fourth Proportional to 1,086,401.70, 1,628,954.55 and 665,979.30

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Solution

The fourth proportional to 1,086,401.70, 1,628,954.55 and 665,979.30 is: 998,571.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,401.70 : 1,628,954.55 = 665,979.30 : x
  2. Step 2: Convert to fraction form
    1,086,401.70/1,628,954.55 = 665,979.30/x
  3. Step 3: Cross multiply
    1,086,401.70x = 1,628,954.55 × 665,979.30
  4. Step 4: Simplify right side
    1,086,401.70x = 1,084,850,010,940.82
  5. Step 5: Solve for x
    x = 1,084,850,010,940.82/1,086,401.70
  6. Step 6: Final answer
    x = 998,571.72

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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.