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Finding the Fourth Proportional to 481,449.60, 721,846.35 and 228,851.10

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Solution

The fourth proportional to 481,449.60, 721,846.35 and 228,851.10 is: 343,120.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,449.60 : 721,846.35 = 228,851.10 : x
  2. Step 2: Convert to fraction form
    481,449.60/721,846.35 = 228,851.10/x
  3. Step 3: Cross multiply
    481,449.60x = 721,846.35 × 228,851.10
  4. Step 4: Simplify right side
    481,449.60x = 165,195,331,228.49
  5. Step 5: Solve for x
    x = 165,195,331,228.49/481,449.60
  6. Step 6: Final answer
    x = 343,120.72

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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.