Home / 394,869.34-592,303.53-128,629.42

Finding the Fourth Proportional to 394,869.34, 592,303.53 and 128,629.42

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Solution

The fourth proportional to 394,869.34, 592,303.53 and 128,629.42 is: 192,943.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,869.34 : 592,303.53 = 128,629.42 : x
  2. Step 2: Convert to fraction form
    394,869.34/592,303.53 = 128,629.42/x
  3. Step 3: Cross multiply
    394,869.34x = 592,303.53 × 128,629.42
  4. Step 4: Simplify right side
    394,869.34x = 76,187,659,527.85
  5. Step 5: Solve for x
    x = 76,187,659,527.85/394,869.34
  6. Step 6: Final answer
    x = 192,943.97

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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.