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Finding the Fourth Proportional to 481,456.10, 721,856.10 and 228,857.60

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Solution

The fourth proportional to 481,456.10, 721,856.10 and 228,857.60 is: 343,130.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,456.10 : 721,856.10 = 228,857.60 : x
  2. Step 2: Convert to fraction form
    481,456.10/721,856.10 = 228,857.60/x
  3. Step 3: Cross multiply
    481,456.10x = 721,856.10 × 228,857.60
  4. Step 4: Simplify right side
    481,456.10x = 165,202,254,591.36
  5. Step 5: Solve for x
    x = 165,202,254,591.36/481,456.10
  6. Step 6: Final answer
    x = 343,130.46

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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.