Home / 394,814.29-592,262.94-128,595.55

Finding the Fourth Proportional to 394,814.29, 592,262.94 and 128,595.55

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Solution

The fourth proportional to 394,814.29, 592,262.94 and 128,595.55 is: 192,906.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,814.29 : 592,262.94 = 128,595.55 : x
  2. Step 2: Convert to fraction form
    394,814.29/592,262.94 = 128,595.55/x
  3. Step 3: Cross multiply
    394,814.29x = 592,262.94 × 128,595.55
  4. Step 4: Simplify right side
    394,814.29x = 76,162,378,513.92
  5. Step 5: Solve for x
    x = 76,162,378,513.92/394,814.29
  6. Step 6: Final answer
    x = 192,906.84

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1.5x scale

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.