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Finding the Fourth Proportional to 222,429.40, 333,644.10 and 220,953.18

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Solution

The fourth proportional to 222,429.40, 333,644.10 and 220,953.18 is: 331,429.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,429.40 : 333,644.10 = 220,953.18 : x
  2. Step 2: Convert to fraction form
    222,429.40/333,644.10 = 220,953.18/x
  3. Step 3: Cross multiply
    222,429.40x = 333,644.10 × 220,953.18
  4. Step 4: Simplify right side
    222,429.40x = 73,719,723,215.02
  5. Step 5: Solve for x
    x = 73,719,723,215.02/222,429.40
  6. Step 6: Final answer
    x = 331,429.76

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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.