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Finding the Fourth Proportional to 512,418.06, 768,627.09 and 246,012.30

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Solution

The fourth proportional to 512,418.06, 768,627.09 and 246,012.30 is: 369,018.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,418.06 : 768,627.09 = 246,012.30 : x
  2. Step 2: Convert to fraction form
    512,418.06/768,627.09 = 246,012.30/x
  3. Step 3: Cross multiply
    512,418.06x = 768,627.09 × 246,012.30
  4. Step 4: Simplify right side
    512,418.06x = 189,091,718,253.21
  5. Step 5: Solve for x
    x = 189,091,718,253.21/512,418.06
  6. Step 6: Final answer
    x = 369,018.45

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Similar ratio
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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.