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Finding the Fourth Proportional to 1,690,709.76, 2,536,349.76 and 568,512

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Solution

The fourth proportional to 1,690,709.76, 2,536,349.76 and 568,512 is: 852,863.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,709.76 : 2,536,349.76 = 568,512 : x
  2. Step 2: Convert to fraction form
    1,690,709.76/2,536,349.76 = 568,512/x
  3. Step 3: Cross multiply
    1,690,709.76x = 2,536,349.76 × 568,512
  4. Step 4: Simplify right side
    1,690,709.76x = 1,441,945,274,757.12
  5. Step 5: Solve for x
    x = 1,441,945,274,757.12/1,690,709.76
  6. Step 6: Final answer
    x = 852,863.87

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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.