Home / 394,436.20-592,043.10-194,981.80

Finding the Fourth Proportional to 394,436.20, 592,043.10 and 194,981.80

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Solution

The fourth proportional to 394,436.20, 592,043.10 and 194,981.80 is: 292,664.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,436.20 : 592,043.10 = 194,981.80 : x
  2. Step 2: Convert to fraction form
    394,436.20/592,043.10 = 194,981.80/x
  3. Step 3: Cross multiply
    394,436.20x = 592,043.10 × 194,981.80
  4. Step 4: Simplify right side
    394,436.20x = 115,437,629,315.58
  5. Step 5: Solve for x
    x = 115,437,629,315.58/394,436.20
  6. Step 6: Final answer
    x = 292,664.90

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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.