Home / 1,173,193.88-1,619,007.55-636,649.88

Finding the Fourth Proportional to 1,173,193.88, 1,619,007.55 and 636,649.88

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Solution

The fourth proportional to 1,173,193.88, 1,619,007.55 and 636,649.88 is: 878,576.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,193.88 : 1,619,007.55 = 636,649.88 : x
  2. Step 2: Convert to fraction form
    1,173,193.88/1,619,007.55 = 636,649.88/x
  3. Step 3: Cross multiply
    1,173,193.88x = 1,619,007.55 × 636,649.88
  4. Step 4: Simplify right side
    1,173,193.88x = 1,030,740,952,739.93
  5. Step 5: Solve for x
    x = 1,030,740,952,739.93/1,173,193.88
  6. Step 6: Final answer
    x = 878,576.83

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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.