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Finding the Fourth Proportional to 422,045.25, 633,223.40 and 222,357.57

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Solution

The fourth proportional to 422,045.25, 633,223.40 and 222,357.57 is: 333,618.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,045.25 : 633,223.40 = 222,357.57 : x
  2. Step 2: Convert to fraction form
    422,045.25/633,223.40 = 222,357.57/x
  3. Step 3: Cross multiply
    422,045.25x = 633,223.40 × 222,357.57
  4. Step 4: Simplify right side
    422,045.25x = 140,802,015,379.35
  5. Step 5: Solve for x
    x = 140,802,015,379.35/422,045.25
  6. Step 6: Final answer
    x = 333,618.29

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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.