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Finding the Fourth Proportional to 288,047.80, 431,553.30 and 246,575.80

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Solution

The fourth proportional to 288,047.80, 431,553.30 and 246,575.80 is: 369,419.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,047.80 : 431,553.30 = 246,575.80 : x
  2. Step 2: Convert to fraction form
    288,047.80/431,553.30 = 246,575.80/x
  3. Step 3: Cross multiply
    288,047.80x = 431,553.30 × 246,575.80
  4. Step 4: Simplify right side
    288,047.80x = 106,410,600,190.14
  5. Step 5: Solve for x
    x = 106,410,600,190.14/288,047.80
  6. Step 6: Final answer
    x = 369,419.94

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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.