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Finding the Fourth Proportional to 635,231.69, 952,645.46 and 208,668.55

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Solution

The fourth proportional to 635,231.69, 952,645.46 and 208,668.55 is: 312,936.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,231.69 : 952,645.46 = 208,668.55 : x
  2. Step 2: Convert to fraction form
    635,231.69/952,645.46 = 208,668.55/x
  3. Step 3: Cross multiply
    635,231.69x = 952,645.46 × 208,668.55
  4. Step 4: Simplify right side
    635,231.69x = 198,787,146,802.28
  5. Step 5: Solve for x
    x = 198,787,146,802.28/635,231.69
  6. Step 6: Final answer
    x = 312,936.44

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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.