Home / 394,868.58-592,302.41-128,628.67

Finding the Fourth Proportional to 394,868.58, 592,302.41 and 128,628.67

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Solution

The fourth proportional to 394,868.58, 592,302.41 and 128,628.67 is: 192,942.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,868.58 : 592,302.41 = 128,628.67 : x
  2. Step 2: Convert to fraction form
    394,868.58/592,302.41 = 128,628.67/x
  3. Step 3: Cross multiply
    394,868.58x = 592,302.41 × 128,628.67
  4. Step 4: Simplify right side
    394,868.58x = 76,187,071,236.09
  5. Step 5: Solve for x
    x = 76,187,071,236.09/394,868.58
  6. Step 6: Final answer
    x = 192,942.86

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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.