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Finding the Fourth Proportional to 512,672.85, 769,009.28 and 246,369.15

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Solution

The fourth proportional to 512,672.85, 769,009.28 and 246,369.15 is: 369,553.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,672.85 : 769,009.28 = 246,369.15 : x
  2. Step 2: Convert to fraction form
    512,672.85/769,009.28 = 246,369.15/x
  3. Step 3: Cross multiply
    512,672.85x = 769,009.28 × 246,369.15
  4. Step 4: Simplify right side
    512,672.85x = 189,460,161,423.87
  5. Step 5: Solve for x
    x = 189,460,161,423.87/512,672.85
  6. Step 6: Final answer
    x = 369,553.73

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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.