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Finding the Fourth Proportional to 351,679.60, 528,005.40 and 226,097.20

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Solution

The fourth proportional to 351,679.60, 528,005.40 and 226,097.20 is: 339,458.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,679.60 : 528,005.40 = 226,097.20 : x
  2. Step 2: Convert to fraction form
    351,679.60/528,005.40 = 226,097.20/x
  3. Step 3: Cross multiply
    351,679.60x = 528,005.40 × 226,097.20
  4. Step 4: Simplify right side
    351,679.60x = 119,380,542,524.88
  5. Step 5: Solve for x
    x = 119,380,542,524.88/351,679.60
  6. Step 6: Final answer
    x = 339,458.25

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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.