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Finding the Fourth Proportional to 265,090.20, 397,635.30 and 245,844.60

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Solution

The fourth proportional to 265,090.20, 397,635.30 and 245,844.60 is: 368,766.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,090.20 : 397,635.30 = 245,844.60 : x
  2. Step 2: Convert to fraction form
    265,090.20/397,635.30 = 245,844.60/x
  3. Step 3: Cross multiply
    265,090.20x = 397,635.30 × 245,844.60
  4. Step 4: Simplify right side
    265,090.20x = 97,756,491,274.38
  5. Step 5: Solve for x
    x = 97,756,491,274.38/265,090.20
  6. Step 6: Final answer
    x = 368,766.90

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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.