Home / 579,186.90-868,896.09-200,121.30

Finding the Fourth Proportional to 579,186.90, 868,896.09 and 200,121.30

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Solution

The fourth proportional to 579,186.90, 868,896.09 and 200,121.30 is: 300,221.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,186.90 : 868,896.09 = 200,121.30 : x
  2. Step 2: Convert to fraction form
    579,186.90/868,896.09 = 200,121.30/x
  3. Step 3: Cross multiply
    579,186.90x = 868,896.09 × 200,121.30
  4. Step 4: Simplify right side
    579,186.90x = 173,884,615,095.72
  5. Step 5: Solve for x
    x = 173,884,615,095.72/579,186.90
  6. Step 6: Final answer
    x = 300,221.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.