Home / 1,105,198.48-1,525,360.31-639,984.70

Finding the Fourth Proportional to 1,105,198.48, 1,525,360.31 and 639,984.70

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Solution

The fourth proportional to 1,105,198.48, 1,525,360.31 and 639,984.70 is: 883,286.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,198.48 : 1,525,360.31 = 639,984.70 : x
  2. Step 2: Convert to fraction form
    1,105,198.48/1,525,360.31 = 639,984.70/x
  3. Step 3: Cross multiply
    1,105,198.48x = 1,525,360.31 × 639,984.70
  4. Step 4: Simplify right side
    1,105,198.48x = 976,207,260,387.26
  5. Step 5: Solve for x
    x = 976,207,260,387.26/1,105,198.48
  6. Step 6: Final answer
    x = 883,286.83

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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.