Home / 512,788.11-769,255.05-157,831.71

Finding the Fourth Proportional to 512,788.11, 769,255.05 and 157,831.71

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Solution

The fourth proportional to 512,788.11, 769,255.05 and 157,831.71 is: 236,770.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,788.11 : 769,255.05 = 157,831.71 : x
  2. Step 2: Convert to fraction form
    512,788.11/769,255.05 = 157,831.71/x
  3. Step 3: Cross multiply
    512,788.11x = 769,255.05 × 157,831.71
  4. Step 4: Simplify right side
    512,788.11x = 121,412,839,967.64
  5. Step 5: Solve for x
    x = 121,412,839,967.64/512,788.11
  6. Step 6: Final answer
    x = 236,770.00

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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.