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Finding the Fourth Proportional to 403,857.27, 605,779.11 and 119,546.60

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Solution

The fourth proportional to 403,857.27, 605,779.11 and 119,546.60 is: 179,317.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,857.27 : 605,779.11 = 119,546.60 : x
  2. Step 2: Convert to fraction form
    403,857.27/605,779.11 = 119,546.60/x
  3. Step 3: Cross multiply
    403,857.27x = 605,779.11 × 119,546.60
  4. Step 4: Simplify right side
    403,857.27x = 72,418,829,922.63
  5. Step 5: Solve for x
    x = 72,418,829,922.63/403,857.27
  6. Step 6: Final answer
    x = 179,317.88

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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.