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Finding the Fourth Proportional to 483,372.80, 725,059.20 and 372,780.80

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Solution

The fourth proportional to 483,372.80, 725,059.20 and 372,780.80 is: 559,171.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,372.80 : 725,059.20 = 372,780.80 : x
  2. Step 2: Convert to fraction form
    483,372.80/725,059.20 = 372,780.80/x
  3. Step 3: Cross multiply
    483,372.80x = 725,059.20 × 372,780.80
  4. Step 4: Simplify right side
    483,372.80x = 270,288,148,623.36
  5. Step 5: Solve for x
    x = 270,288,148,623.36/483,372.80
  6. Step 6: Final answer
    x = 559,171.20

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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.