Home / 394,990.27-592,546.83-128,688.73

Finding the Fourth Proportional to 394,990.27, 592,546.83 and 128,688.73

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Solution

The fourth proportional to 394,990.27, 592,546.83 and 128,688.73 is: 193,053.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,990.27 : 592,546.83 = 128,688.73 : x
  2. Step 2: Convert to fraction form
    394,990.27/592,546.83 = 128,688.73/x
  3. Step 3: Cross multiply
    394,990.27x = 592,546.83 × 128,688.73
  4. Step 4: Simplify right side
    394,990.27x = 76,254,099,018.23
  5. Step 5: Solve for x
    x = 76,254,099,018.23/394,990.27
  6. Step 6: Final answer
    x = 193,053.11

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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.