Home / 394,721.20-592,081.80-194,964.40

Finding the Fourth Proportional to 394,721.20, 592,081.80 and 194,964.40

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Solution

The fourth proportional to 394,721.20, 592,081.80 and 194,964.40 is: 292,446.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,721.20 : 592,081.80 = 194,964.40 : x
  2. Step 2: Convert to fraction form
    394,721.20/592,081.80 = 194,964.40/x
  3. Step 3: Cross multiply
    394,721.20x = 592,081.80 × 194,964.40
  4. Step 4: Simplify right side
    394,721.20x = 115,434,872,887.92
  5. Step 5: Solve for x
    x = 115,434,872,887.92/394,721.20
  6. Step 6: Final answer
    x = 292,446.60

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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.