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Finding the Fourth Proportional to 402,183.80, 603,275.70 and 267,464.60

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Solution

The fourth proportional to 402,183.80, 603,275.70 and 267,464.60 is: 401,196.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,183.80 : 603,275.70 = 267,464.60 : x
  2. Step 2: Convert to fraction form
    402,183.80/603,275.70 = 267,464.60/x
  3. Step 3: Cross multiply
    402,183.80x = 603,275.70 × 267,464.60
  4. Step 4: Simplify right side
    402,183.80x = 161,354,893,790.22
  5. Step 5: Solve for x
    x = 161,354,893,790.22/402,183.80
  6. Step 6: Final answer
    x = 401,196.90

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Similar ratio
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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.