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Finding the Fourth Proportional to 222,318.80, 333,478.20 and 205,038.80

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Solution

The fourth proportional to 222,318.80, 333,478.20 and 205,038.80 is: 307,558.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,318.80 : 333,478.20 = 205,038.80 : x
  2. Step 2: Convert to fraction form
    222,318.80/333,478.20 = 205,038.80/x
  3. Step 3: Cross multiply
    222,318.80x = 333,478.20 × 205,038.80
  4. Step 4: Simplify right side
    222,318.80x = 68,375,969,954.16
  5. Step 5: Solve for x
    x = 68,375,969,954.16/222,318.80
  6. Step 6: Final answer
    x = 307,558.20

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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.