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Finding the Fourth Proportional to 325,499.63, 449,116.84 and 196,459.03

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Solution

The fourth proportional to 325,499.63, 449,116.84 and 196,459.03 is: 271,069.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,499.63 : 449,116.84 = 196,459.03 : x
  2. Step 2: Convert to fraction form
    325,499.63/449,116.84 = 196,459.03/x
  3. Step 3: Cross multiply
    325,499.63x = 449,116.84 × 196,459.03
  4. Step 4: Simplify right side
    325,499.63x = 88,233,057,760.77
  5. Step 5: Solve for x
    x = 88,233,057,760.77/325,499.63
  6. Step 6: Final answer
    x = 271,069.61

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1.5x scale

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.