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Finding the Fourth Proportional to 635,258.38, 952,685.28 and 208,695.20

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Solution

The fourth proportional to 635,258.38, 952,685.28 and 208,695.20 is: 312,976.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,258.38 : 952,685.28 = 208,695.20 : x
  2. Step 2: Convert to fraction form
    635,258.38/952,685.28 = 208,695.20/x
  3. Step 3: Cross multiply
    635,258.38x = 952,685.28 × 208,695.20
  4. Step 4: Simplify right side
    635,258.38x = 198,820,845,046.66
  5. Step 5: Solve for x
    x = 198,820,845,046.66/635,258.38
  6. Step 6: Final answer
    x = 312,976.34

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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.