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Finding the Fourth Proportional to 635,859, 953,936.20 and 186,561.72

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Solution

The fourth proportional to 635,859, 953,936.20 and 186,561.72 is: 279,885.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,859 : 953,936.20 = 186,561.72 : x
  2. Step 2: Convert to fraction form
    635,859/953,936.20 = 186,561.72/x
  3. Step 3: Cross multiply
    635,859x = 953,936.20 × 186,561.72
  4. Step 4: Simplify right side
    635,859x = 177,967,978,242.26
  5. Step 5: Solve for x
    x = 177,967,978,242.26/635,859
  6. Step 6: Final answer
    x = 279,885.92

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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.