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Finding the Fourth Proportional to 454,052.80, 681,079.20 and 404,189.20

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Solution

The fourth proportional to 454,052.80, 681,079.20 and 404,189.20 is: 606,283.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,052.80 : 681,079.20 = 404,189.20 : x
  2. Step 2: Convert to fraction form
    454,052.80/681,079.20 = 404,189.20/x
  3. Step 3: Cross multiply
    454,052.80x = 681,079.20 × 404,189.20
  4. Step 4: Simplify right side
    454,052.80x = 275,284,856,984.64
  5. Step 5: Solve for x
    x = 275,284,856,984.64/454,052.80
  6. Step 6: Final answer
    x = 606,283.80

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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.