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Finding the Fourth Proportional to 497,639.60, 746,459.40 and 123,662.60

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Solution

The fourth proportional to 497,639.60, 746,459.40 and 123,662.60 is: 185,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,639.60 : 746,459.40 = 123,662.60 : x
  2. Step 2: Convert to fraction form
    497,639.60/746,459.40 = 123,662.60/x
  3. Step 3: Cross multiply
    497,639.60x = 746,459.40 × 123,662.60
  4. Step 4: Simplify right side
    497,639.60x = 92,309,110,198.44
  5. Step 5: Solve for x
    x = 92,309,110,198.44/497,639.60
  6. Step 6: Final answer
    x = 185,493.90

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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.