Home / 394,960.01-592,326.90-128,743.79

Finding the Fourth Proportional to 394,960.01, 592,326.90 and 128,743.79

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Solution

The fourth proportional to 394,960.01, 592,326.90 and 128,743.79 is: 193,078.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,960.01 : 592,326.90 = 128,743.79 : x
  2. Step 2: Convert to fraction form
    394,960.01/592,326.90 = 128,743.79/x
  3. Step 3: Cross multiply
    394,960.01x = 592,326.90 × 128,743.79
  4. Step 4: Simplify right side
    394,960.01x = 76,258,407,063.32
  5. Step 5: Solve for x
    x = 76,258,407,063.32/394,960.01
  6. Step 6: Final answer
    x = 193,078.81

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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.