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Finding the Fourth Proportional to 5,664,812.78, 8,498,780.93 and 2,255,493.57

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Solution

The fourth proportional to 5,664,812.78, 8,498,780.93 and 2,255,493.57 is: 3,383,862.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,664,812.78 : 8,498,780.93 = 2,255,493.57 : x
  2. Step 2: Convert to fraction form
    5,664,812.78/8,498,780.93 = 2,255,493.57/x
  3. Step 3: Cross multiply
    5,664,812.78x = 8,498,780.93 × 2,255,493.57
  4. Step 4: Simplify right side
    5,664,812.78x = 19,168,945,740,453.62
  5. Step 5: Solve for x
    x = 19,168,945,740,453.62/5,664,812.78
  6. Step 6: Final answer
    x = 3,383,862.18

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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.