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Finding the Fourth Proportional to 722,201.92, 996,468.96 and 431,908.48

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Solution

The fourth proportional to 722,201.92, 996,468.96 and 431,908.48 is: 595,932.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,201.92 : 996,468.96 = 431,908.48 : x
  2. Step 2: Convert to fraction form
    722,201.92/996,468.96 = 431,908.48/x
  3. Step 3: Cross multiply
    722,201.92x = 996,468.96 × 431,908.48
  4. Step 4: Simplify right side
    722,201.92x = 430,383,393,880.78
  5. Step 5: Solve for x
    x = 430,383,393,880.78/722,201.92
  6. Step 6: Final answer
    x = 595,932.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.