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Finding the Fourth Proportional to 617,605.20, 926,321.40 and 196,923.60

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Solution

The fourth proportional to 617,605.20, 926,321.40 and 196,923.60 is: 295,357.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,605.20 : 926,321.40 = 196,923.60 : x
  2. Step 2: Convert to fraction form
    617,605.20/926,321.40 = 196,923.60/x
  3. Step 3: Cross multiply
    617,605.20x = 926,321.40 × 196,923.60
  4. Step 4: Simplify right side
    617,605.20x = 182,414,544,845.04
  5. Step 5: Solve for x
    x = 182,414,544,845.04/617,605.20
  6. Step 6: Final answer
    x = 295,357.85

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1.5x scale

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.