Home / 1,238,523.70-1,857,348.15-439,831.30

Finding the Fourth Proportional to 1,238,523.70, 1,857,348.15 and 439,831.30

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Solution

The fourth proportional to 1,238,523.70, 1,857,348.15 and 439,831.30 is: 659,591.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,523.70 : 1,857,348.15 = 439,831.30 : x
  2. Step 2: Convert to fraction form
    1,238,523.70/1,857,348.15 = 439,831.30/x
  3. Step 3: Cross multiply
    1,238,523.70x = 1,857,348.15 × 439,831.30
  4. Step 4: Simplify right side
    1,238,523.70x = 816,919,851,367.10
  5. Step 5: Solve for x
    x = 816,919,851,367.10/1,238,523.70
  6. Step 6: Final answer
    x = 659,591.62

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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.