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Finding the Fourth Proportional to 274,616.90, 411,464.55 and 134,072.90

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Solution

The fourth proportional to 274,616.90, 411,464.55 and 134,072.90 is: 200,884.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,616.90 : 411,464.55 = 134,072.90 : x
  2. Step 2: Convert to fraction form
    274,616.90/411,464.55 = 134,072.90/x
  3. Step 3: Cross multiply
    274,616.90x = 411,464.55 × 134,072.90
  4. Step 4: Simplify right side
    274,616.90x = 55,166,245,465.70
  5. Step 5: Solve for x
    x = 55,166,245,465.70/274,616.90
  6. Step 6: Final answer
    x = 200,884.38

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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.