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Finding the Fourth Proportional to 437,236.80, 655,855.20 and 201,040.80

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Solution

The fourth proportional to 437,236.80, 655,855.20 and 201,040.80 is: 301,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,236.80 : 655,855.20 = 201,040.80 : x
  2. Step 2: Convert to fraction form
    437,236.80/655,855.20 = 201,040.80/x
  3. Step 3: Cross multiply
    437,236.80x = 655,855.20 × 201,040.80
  4. Step 4: Simplify right side
    437,236.80x = 131,853,654,092.16
  5. Step 5: Solve for x
    x = 131,853,654,092.16/437,236.80
  6. Step 6: Final answer
    x = 301,561.20

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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.