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Finding the Fourth Proportional to 325,409.90, 449,067.43 and 180,220.44

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Solution

The fourth proportional to 325,409.90, 449,067.43 and 180,220.44 is: 248,705.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,409.90 : 449,067.43 = 180,220.44 : x
  2. Step 2: Convert to fraction form
    325,409.90/449,067.43 = 180,220.44/x
  3. Step 3: Cross multiply
    325,409.90x = 449,067.43 × 180,220.44
  4. Step 4: Simplify right side
    325,409.90x = 80,931,129,824.27
  5. Step 5: Solve for x
    x = 80,931,129,824.27/325,409.90
  6. Step 6: Final answer
    x = 248,705.19

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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.