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Finding the Fourth Proportional to 217,870.60, 327,000.30 and 188,321.80

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Solution

The fourth proportional to 217,870.60, 327,000.30 and 188,321.80 is: 282,650.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,870.60 : 327,000.30 = 188,321.80 : x
  2. Step 2: Convert to fraction form
    217,870.60/327,000.30 = 188,321.80/x
  3. Step 3: Cross multiply
    217,870.60x = 327,000.30 × 188,321.80
  4. Step 4: Simplify right side
    217,870.60x = 61,581,285,096.54
  5. Step 5: Solve for x
    x = 61,581,285,096.54/217,870.60
  6. Step 6: Final answer
    x = 282,650.73

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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.