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Finding the Fourth Proportional to 512,292.78, 768,416.38 and 175,363.56

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Solution

The fourth proportional to 512,292.78, 768,416.38 and 175,363.56 is: 263,037.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,292.78 : 768,416.38 = 175,363.56 : x
  2. Step 2: Convert to fraction form
    512,292.78/768,416.38 = 175,363.56/x
  3. Step 3: Cross multiply
    512,292.78x = 768,416.38 × 175,363.56
  4. Step 4: Simplify right side
    512,292.78x = 134,752,229,515.96
  5. Step 5: Solve for x
    x = 134,752,229,515.96/512,292.78
  6. Step 6: Final answer
    x = 263,037.54

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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.