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Finding the Fourth Proportional to 362,556.40, 543,618.60 and 222,415.60

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Solution

The fourth proportional to 362,556.40, 543,618.60 and 222,415.60 is: 333,490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,556.40 : 543,618.60 = 222,415.60 : x
  2. Step 2: Convert to fraction form
    362,556.40/543,618.60 = 222,415.60/x
  3. Step 3: Cross multiply
    362,556.40x = 543,618.60 × 222,415.60
  4. Step 4: Simplify right side
    362,556.40x = 120,909,257,090.16
  5. Step 5: Solve for x
    x = 120,909,257,090.16/362,556.40
  6. Step 6: Final answer
    x = 333,490.89

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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.