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Finding the Fourth Proportional to 512,229.51, 768,458.52 and 157,279.41

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Solution

The fourth proportional to 512,229.51, 768,458.52 and 157,279.41 is: 235,954.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,229.51 : 768,458.52 = 157,279.41 : x
  2. Step 2: Convert to fraction form
    512,229.51/768,458.52 = 157,279.41/x
  3. Step 3: Cross multiply
    512,229.51x = 768,458.52 × 157,279.41
  4. Step 4: Simplify right side
    512,229.51x = 120,862,702,635.07
  5. Step 5: Solve for x
    x = 120,862,702,635.07/512,229.51
  6. Step 6: Final answer
    x = 235,954.20

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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.