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Finding the Fourth Proportional to 460,745.12, 635,857.26 and 279,474.32

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Solution

The fourth proportional to 460,745.12, 635,857.26 and 279,474.32 is: 385,692.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,745.12 : 635,857.26 = 279,474.32 : x
  2. Step 2: Convert to fraction form
    460,745.12/635,857.26 = 279,474.32/x
  3. Step 3: Cross multiply
    460,745.12x = 635,857.26 × 279,474.32
  4. Step 4: Simplify right side
    460,745.12x = 177,705,775,355.56
  5. Step 5: Solve for x
    x = 177,705,775,355.56/460,745.12
  6. Step 6: Final answer
    x = 385,692.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.