Home / 825,637.74-1,139,418.45-515,723.85

Finding the Fourth Proportional to 825,637.74, 1,139,418.45 and 515,723.85

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Solution

The fourth proportional to 825,637.74, 1,139,418.45 and 515,723.85 is: 711,722.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,637.74 : 1,139,418.45 = 515,723.85 : x
  2. Step 2: Convert to fraction form
    825,637.74/1,139,418.45 = 515,723.85/x
  3. Step 3: Cross multiply
    825,637.74x = 1,139,418.45 × 515,723.85
  4. Step 4: Simplify right side
    825,637.74x = 587,625,269,795.03
  5. Step 5: Solve for x
    x = 587,625,269,795.03/825,637.74
  6. Step 6: Final answer
    x = 711,722.88

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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.