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Finding the Fourth Proportional to 481,459.10, 721,860.60 and 228,860.60

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Solution

The fourth proportional to 481,459.10, 721,860.60 and 228,860.60 is: 343,134.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,459.10 : 721,860.60 = 228,860.60 : x
  2. Step 2: Convert to fraction form
    481,459.10/721,860.60 = 228,860.60/x
  3. Step 3: Cross multiply
    481,459.10x = 721,860.60 × 228,860.60
  4. Step 4: Simplify right side
    481,459.10x = 165,205,450,032.36
  5. Step 5: Solve for x
    x = 165,205,450,032.36/481,459.10
  6. Step 6: Final answer
    x = 343,134.96

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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.