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Finding the Fourth Proportional to 512,110.80, 768,166.20 and 246,390.30

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Solution

The fourth proportional to 512,110.80, 768,166.20 and 246,390.30 is: 369,585.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,110.80 : 768,166.20 = 246,390.30 : x
  2. Step 2: Convert to fraction form
    512,110.80/768,166.20 = 246,390.30/x
  3. Step 3: Cross multiply
    512,110.80x = 768,166.20 × 246,390.30
  4. Step 4: Simplify right side
    512,110.80x = 189,268,700,467.86
  5. Step 5: Solve for x
    x = 189,268,700,467.86/512,110.80
  6. Step 6: Final answer
    x = 369,585.45

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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.