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Finding the Fourth Proportional to 617,745.64, 926,687.58 and 196,923.88

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Solution

The fourth proportional to 617,745.64, 926,687.58 and 196,923.88 is: 295,407.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,745.64 : 926,687.58 = 196,923.88 : x
  2. Step 2: Convert to fraction form
    617,745.64/926,687.58 = 196,923.88/x
  3. Step 3: Cross multiply
    617,745.64x = 926,687.58 × 196,923.88
  4. Step 4: Simplify right side
    617,745.64x = 182,486,913,801.41
  5. Step 5: Solve for x
    x = 182,486,913,801.41/617,745.64
  6. Step 6: Final answer
    x = 295,407.85

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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.