Home / 925,111.20-1,387,010.70-419,914.20

Finding the Fourth Proportional to 925,111.20, 1,387,010.70 and 419,914.20

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Solution

The fourth proportional to 925,111.20, 1,387,010.70 and 419,914.20 is: 629,573.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,111.20 : 1,387,010.70 = 419,914.20 : x
  2. Step 2: Convert to fraction form
    925,111.20/1,387,010.70 = 419,914.20/x
  3. Step 3: Cross multiply
    925,111.20x = 1,387,010.70 × 419,914.20
  4. Step 4: Simplify right side
    925,111.20x = 582,425,488,481.94
  5. Step 5: Solve for x
    x = 582,425,488,481.94/925,111.20
  6. Step 6: Final answer
    x = 629,573.49

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1.5x scale

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.