Home / 1,959,713.19-2,939,568.71-611,991.32

Finding the Fourth Proportional to 1,959,713.19, 2,939,568.71 and 611,991.32

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Solution

The fourth proportional to 1,959,713.19, 2,939,568.71 and 611,991.32 is: 917,986.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959,713.19 : 2,939,568.71 = 611,991.32 : x
  2. Step 2: Convert to fraction form
    1,959,713.19/2,939,568.71 = 611,991.32/x
  3. Step 3: Cross multiply
    1,959,713.19x = 2,939,568.71 × 611,991.32
  4. Step 4: Simplify right side
    1,959,713.19x = 1,798,990,517,305.80
  5. Step 5: Solve for x
    x = 1,798,990,517,305.80/1,959,713.19
  6. Step 6: Final answer
    x = 917,986.64

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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.