Home / 722,229.39-996,664.26-399,932.55

Finding the Fourth Proportional to 722,229.39, 996,664.26 and 399,932.55

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Solution

The fourth proportional to 722,229.39, 996,664.26 and 399,932.55 is: 551,900.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,229.39 : 996,664.26 = 399,932.55 : x
  2. Step 2: Convert to fraction form
    722,229.39/996,664.26 = 399,932.55/x
  3. Step 3: Cross multiply
    722,229.39x = 996,664.26 × 399,932.55
  4. Step 4: Simplify right side
    722,229.39x = 398,598,478,995.66
  5. Step 5: Solve for x
    x = 398,598,478,995.66/722,229.39
  6. Step 6: Final answer
    x = 551,900.11

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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.