Home / 399,286.20-598,929.30-189,334.20

Finding the Fourth Proportional to 399,286.20, 598,929.30 and 189,334.20

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Solution

The fourth proportional to 399,286.20, 598,929.30 and 189,334.20 is: 284,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,286.20 : 598,929.30 = 189,334.20 : x
  2. Step 2: Convert to fraction form
    399,286.20/598,929.30 = 189,334.20/x
  3. Step 3: Cross multiply
    399,286.20x = 598,929.30 × 189,334.20
  4. Step 4: Simplify right side
    399,286.20x = 113,397,799,872.06
  5. Step 5: Solve for x
    x = 113,397,799,872.06/399,286.20
  6. Step 6: Final answer
    x = 284,001.30

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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.