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Finding the Fourth Proportional to 512,234.30, 768,351.45 and 246,513.80

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Solution

The fourth proportional to 512,234.30, 768,351.45 and 246,513.80 is: 369,770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,234.30 : 768,351.45 = 246,513.80 : x
  2. Step 2: Convert to fraction form
    512,234.30/768,351.45 = 246,513.80/x
  3. Step 3: Cross multiply
    512,234.30x = 768,351.45 × 246,513.80
  4. Step 4: Simplify right side
    512,234.30x = 189,409,235,675.01
  5. Step 5: Solve for x
    x = 189,409,235,675.01/512,234.30
  6. Step 6: Final answer
    x = 369,770.70

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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.