Home / 639,114.27-882,297.27-397,474.71

Finding the Fourth Proportional to 639,114.27, 882,297.27 and 397,474.71

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Solution

The fourth proportional to 639,114.27, 882,297.27 and 397,474.71 is: 548,713.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,114.27 : 882,297.27 = 397,474.71 : x
  2. Step 2: Convert to fraction form
    639,114.27/882,297.27 = 397,474.71/x
  3. Step 3: Cross multiply
    639,114.27x = 882,297.27 × 397,474.71
  4. Step 4: Simplify right side
    639,114.27x = 350,690,851,527.04
  5. Step 5: Solve for x
    x = 350,690,851,527.04/639,114.27
  6. Step 6: Final answer
    x = 548,713.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.