Home / 1,185,329.76-1,635,742.56-641,453.76

Finding the Fourth Proportional to 1,185,329.76, 1,635,742.56 and 641,453.76

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Solution

The fourth proportional to 1,185,329.76, 1,635,742.56 and 641,453.76 is: 885,199.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,329.76 : 1,635,742.56 = 641,453.76 : x
  2. Step 2: Convert to fraction form
    1,185,329.76/1,635,742.56 = 641,453.76/x
  3. Step 3: Cross multiply
    1,185,329.76x = 1,635,742.56 × 641,453.76
  4. Step 4: Simplify right side
    1,185,329.76x = 1,049,253,215,504.03
  5. Step 5: Solve for x
    x = 1,049,253,215,504.03/1,185,329.76
  6. Step 6: Final answer
    x = 885,199.42

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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.