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Finding the Fourth Proportional to 4,997,291.96, 7,498,936.87 and 2,157,401.39

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Solution

The fourth proportional to 4,997,291.96, 7,498,936.87 and 2,157,401.39 is: 3,237,396.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,997,291.96 : 7,498,936.87 = 2,157,401.39 : x
  2. Step 2: Convert to fraction form
    4,997,291.96/7,498,936.87 = 2,157,401.39/x
  3. Step 3: Cross multiply
    4,997,291.96x = 7,498,936.87 × 2,157,401.39
  4. Step 4: Simplify right side
    4,997,291.96x = 16,178,216,783,972.06
  5. Step 5: Solve for x
    x = 16,178,216,783,972.06/4,997,291.96
  6. Step 6: Final answer
    x = 3,237,396.76

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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.