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Finding the Fourth Proportional to 3,765,939.92, 5,648,860.92 and 926,076.88

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Solution

The fourth proportional to 3,765,939.92, 5,648,860.92 and 926,076.88 is: 1,389,103.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765,939.92 : 5,648,860.92 = 926,076.88 : x
  2. Step 2: Convert to fraction form
    3,765,939.92/5,648,860.92 = 926,076.88/x
  3. Step 3: Cross multiply
    3,765,939.92x = 5,648,860.92 × 926,076.88
  4. Step 4: Simplify right side
    3,765,939.92x = 5,231,279,496,347.53
  5. Step 5: Solve for x
    x = 5,231,279,496,347.53/3,765,939.92
  6. Step 6: Final answer
    x = 1,389,103.28

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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.