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Finding the Fourth Proportional to 512,340.85, 768,511.28 and 246,037.15

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Solution

The fourth proportional to 512,340.85, 768,511.28 and 246,037.15 is: 369,055.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,340.85 : 768,511.28 = 246,037.15 : x
  2. Step 2: Convert to fraction form
    512,340.85/768,511.28 = 246,037.15/x
  3. Step 3: Cross multiply
    512,340.85x = 768,511.28 × 246,037.15
  4. Step 4: Simplify right side
    512,340.85x = 189,082,323,843.87
  5. Step 5: Solve for x
    x = 189,082,323,843.87/512,340.85
  6. Step 6: Final answer
    x = 369,055.73

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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.