Home / 394,336.80-591,505.20-144,986.40

Finding the Fourth Proportional to 394,336.80, 591,505.20 and 144,986.40

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Solution

The fourth proportional to 394,336.80, 591,505.20 and 144,986.40 is: 217,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,336.80 : 591,505.20 = 144,986.40 : x
  2. Step 2: Convert to fraction form
    394,336.80/591,505.20 = 144,986.40/x
  3. Step 3: Cross multiply
    394,336.80x = 591,505.20 × 144,986.40
  4. Step 4: Simplify right side
    394,336.80x = 85,760,209,529.28
  5. Step 5: Solve for x
    x = 85,760,209,529.28/394,336.80
  6. Step 6: Final answer
    x = 217,479.60

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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.