Home / 512,789.11-769,256.55-157,832.71

Finding the Fourth Proportional to 512,789.11, 769,256.55 and 157,832.71

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Solution

The fourth proportional to 512,789.11, 769,256.55 and 157,832.71 is: 236,771.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,789.11 : 769,256.55 = 157,832.71 : x
  2. Step 2: Convert to fraction form
    512,789.11/769,256.55 = 157,832.71/x
  3. Step 3: Cross multiply
    512,789.11x = 769,256.55 × 157,832.71
  4. Step 4: Simplify right side
    512,789.11x = 121,413,845,971.75
  5. Step 5: Solve for x
    x = 121,413,845,971.75/512,789.11
  6. Step 6: Final answer
    x = 236,771.50

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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.