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Finding the Fourth Proportional to 636,620.20, 954,930.30 and 193,330.60

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Solution

The fourth proportional to 636,620.20, 954,930.30 and 193,330.60 is: 289,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,620.20 : 954,930.30 = 193,330.60 : x
  2. Step 2: Convert to fraction form
    636,620.20/954,930.30 = 193,330.60/x
  3. Step 3: Cross multiply
    636,620.20x = 954,930.30 × 193,330.60
  4. Step 4: Simplify right side
    636,620.20x = 184,617,247,857.18
  5. Step 5: Solve for x
    x = 184,617,247,857.18/636,620.20
  6. Step 6: Final answer
    x = 289,995.90

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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.