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Finding the Fourth Proportional to 512,404.20, 768,606.30 and 483,373.80

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Solution

The fourth proportional to 512,404.20, 768,606.30 and 483,373.80 is: 725,060.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,404.20 : 768,606.30 = 483,373.80 : x
  2. Step 2: Convert to fraction form
    512,404.20/768,606.30 = 483,373.80/x
  3. Step 3: Cross multiply
    512,404.20x = 768,606.30 × 483,373.80
  4. Step 4: Simplify right side
    512,404.20x = 371,524,147,934.94
  5. Step 5: Solve for x
    x = 371,524,147,934.94/512,404.20
  6. Step 6: Final answer
    x = 725,060.70

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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.