Home / 919,866.43-1,269,457.41-511,994.31

Finding the Fourth Proportional to 919,866.43, 1,269,457.41 and 511,994.31

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Solution

The fourth proportional to 919,866.43, 1,269,457.41 and 511,994.31 is: 706,575.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,866.43 : 1,269,457.41 = 511,994.31 : x
  2. Step 2: Convert to fraction form
    919,866.43/1,269,457.41 = 511,994.31/x
  3. Step 3: Cross multiply
    919,866.43x = 1,269,457.41 × 511,994.31
  4. Step 4: Simplify right side
    919,866.43x = 649,954,964,360.05
  5. Step 5: Solve for x
    x = 649,954,964,360.05/919,866.43
  6. Step 6: Final answer
    x = 706,575.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.