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Finding the Fourth Proportional to 722,200.32, 996,593.76 and 399,892.32

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Solution

The fourth proportional to 722,200.32, 996,593.76 and 399,892.32 is: 551,827.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,200.32 : 996,593.76 = 399,892.32 : x
  2. Step 2: Convert to fraction form
    722,200.32/996,593.76 = 399,892.32/x
  3. Step 3: Cross multiply
    722,200.32x = 996,593.76 × 399,892.32
  4. Step 4: Simplify right side
    722,200.32x = 398,530,190,783.92
  5. Step 5: Solve for x
    x = 398,530,190,783.92/722,200.32
  6. Step 6: Final answer
    x = 551,827.77

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Double scale
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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.