Home / 1,286,709.91-1,775,872.55-713,934.61

Finding the Fourth Proportional to 1,286,709.91, 1,775,872.55 and 713,934.61

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Solution

The fourth proportional to 1,286,709.91, 1,775,872.55 and 713,934.61 is: 985,347.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,709.91 : 1,775,872.55 = 713,934.61 : x
  2. Step 2: Convert to fraction form
    1,286,709.91/1,775,872.55 = 713,934.61/x
  3. Step 3: Cross multiply
    1,286,709.91x = 1,775,872.55 × 713,934.61
  4. Step 4: Simplify right side
    1,286,709.91x = 1,267,856,873,739.11
  5. Step 5: Solve for x
    x = 1,267,856,873,739.11/1,286,709.91
  6. Step 6: Final answer
    x = 985,347.88

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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.