Home / 638,020.20-956,976.30-194,788.20

Finding the Fourth Proportional to 638,020.20, 956,976.30 and 194,788.20

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Solution

The fourth proportional to 638,020.20, 956,976.30 and 194,788.20 is: 292,165.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,020.20 : 956,976.30 = 194,788.20 : x
  2. Step 2: Convert to fraction form
    638,020.20/956,976.30 = 194,788.20/x
  3. Step 3: Cross multiply
    638,020.20x = 956,976.30 × 194,788.20
  4. Step 4: Simplify right side
    638,020.20x = 186,407,690,919.66
  5. Step 5: Solve for x
    x = 186,407,690,919.66/638,020.20
  6. Step 6: Final answer
    x = 292,165.81

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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.