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Finding the Fourth Proportional to 512,488.59, 768,735.62 and 336,112.51

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Solution

The fourth proportional to 512,488.59, 768,735.62 and 336,112.51 is: 504,170.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,488.59 : 768,735.62 = 336,112.51 : x
  2. Step 2: Convert to fraction form
    512,488.59/768,735.62 = 336,112.51/x
  3. Step 3: Cross multiply
    512,488.59x = 768,735.62 × 336,112.51
  4. Step 4: Simplify right side
    512,488.59x = 258,381,658,764.61
  5. Step 5: Solve for x
    x = 258,381,658,764.61/512,488.59
  6. Step 6: Final answer
    x = 504,170.56

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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.