Home / 1,286,638.30-1,775,773.77-713,863

Finding the Fourth Proportional to 1,286,638.30, 1,775,773.77 and 713,863

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Solution

The fourth proportional to 1,286,638.30, 1,775,773.77 and 713,863 is: 985,249.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,638.30 : 1,775,773.77 = 713,863 : x
  2. Step 2: Convert to fraction form
    1,286,638.30/1,775,773.77 = 713,863/x
  3. Step 3: Cross multiply
    1,286,638.30x = 1,775,773.77 × 713,863
  4. Step 4: Simplify right side
    1,286,638.30x = 1,267,659,190,773.51
  5. Step 5: Solve for x
    x = 1,267,659,190,773.51/1,286,638.30
  6. Step 6: Final answer
    x = 985,249.07

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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.