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Finding the Fourth Proportional to 325,735.28, 449,328.35 and 189,754.90

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Solution

The fourth proportional to 325,735.28, 449,328.35 and 189,754.90 is: 261,753.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,735.28 : 449,328.35 = 189,754.90 : x
  2. Step 2: Convert to fraction form
    325,735.28/449,328.35 = 189,754.90/x
  3. Step 3: Cross multiply
    325,735.28x = 449,328.35 × 189,754.90
  4. Step 4: Simplify right side
    325,735.28x = 85,262,256,121.42
  5. Step 5: Solve for x
    x = 85,262,256,121.42/325,735.28
  6. Step 6: Final answer
    x = 261,753.21

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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.