Home / 1,639,078.74-2,261,919.33-913,935.15

Finding the Fourth Proportional to 1,639,078.74, 2,261,919.33 and 913,935.15

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Solution

The fourth proportional to 1,639,078.74, 2,261,919.33 and 913,935.15 is: 1,261,225.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,078.74 : 2,261,919.33 = 913,935.15 : x
  2. Step 2: Convert to fraction form
    1,639,078.74/2,261,919.33 = 913,935.15/x
  3. Step 3: Cross multiply
    1,639,078.74x = 2,261,919.33 × 913,935.15
  4. Step 4: Simplify right side
    1,639,078.74x = 2,067,247,582,151.45
  5. Step 5: Solve for x
    x = 2,067,247,582,151.45/1,639,078.74
  6. Step 6: Final answer
    x = 1,261,225.30

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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.