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Finding the Fourth Proportional to 397,270.20, 595,905.30 and 255,552.60

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Solution

The fourth proportional to 397,270.20, 595,905.30 and 255,552.60 is: 383,328.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,270.20 : 595,905.30 = 255,552.60 : x
  2. Step 2: Convert to fraction form
    397,270.20/595,905.30 = 255,552.60/x
  3. Step 3: Cross multiply
    397,270.20x = 595,905.30 × 255,552.60
  4. Step 4: Simplify right side
    397,270.20x = 152,285,148,768.78
  5. Step 5: Solve for x
    x = 152,285,148,768.78/397,270.20
  6. Step 6: Final answer
    x = 383,328.90

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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.