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Finding the Fourth Proportional to 228,974.80, 343,462.20 and 203,605.60

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Solution

The fourth proportional to 228,974.80, 343,462.20 and 203,605.60 is: 305,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,974.80 : 343,462.20 = 203,605.60 : x
  2. Step 2: Convert to fraction form
    228,974.80/343,462.20 = 203,605.60/x
  3. Step 3: Cross multiply
    228,974.80x = 343,462.20 × 203,605.60
  4. Step 4: Simplify right side
    228,974.80x = 69,930,827,308.32
  5. Step 5: Solve for x
    x = 69,930,827,308.32/228,974.80
  6. Step 6: Final answer
    x = 305,408.40

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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.