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Finding the Fourth Proportional to 635,843.48, 953,912.94 and 186,546.20

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Solution

The fourth proportional to 635,843.48, 953,912.94 and 186,546.20 is: 279,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,843.48 : 953,912.94 = 186,546.20 : x
  2. Step 2: Convert to fraction form
    635,843.48/953,912.94 = 186,546.20/x
  3. Step 3: Cross multiply
    635,843.48x = 953,912.94 × 186,546.20
  4. Step 4: Simplify right side
    635,843.48x = 177,948,834,087.83
  5. Step 5: Solve for x
    x = 177,948,834,087.83/635,843.48
  6. Step 6: Final answer
    x = 279,862.64

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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.