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Finding the Fourth Proportional to 222,406.70, 333,634.35 and 215,408.30

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Solution

The fourth proportional to 222,406.70, 333,634.35 and 215,408.30 is: 323,135.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,406.70 : 333,634.35 = 215,408.30 : x
  2. Step 2: Convert to fraction form
    222,406.70/333,634.35 = 215,408.30/x
  3. Step 3: Cross multiply
    222,406.70x = 333,634.35 × 215,408.30
  4. Step 4: Simplify right side
    222,406.70x = 71,867,608,155.11
  5. Step 5: Solve for x
    x = 71,867,608,155.11/222,406.70
  6. Step 6: Final answer
    x = 323,135.99

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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.