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Finding the Fourth Proportional to 450,753.60, 675,147.87 and 225,721.56

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Solution

The fourth proportional to 450,753.60, 675,147.87 and 225,721.56 is: 338,090.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,753.60 : 675,147.87 = 225,721.56 : x
  2. Step 2: Convert to fraction form
    450,753.60/675,147.87 = 225,721.56/x
  3. Step 3: Cross multiply
    450,753.60x = 675,147.87 × 225,721.56
  4. Step 4: Simplify right side
    450,753.60x = 152,395,430,447.08
  5. Step 5: Solve for x
    x = 152,395,430,447.08/450,753.60
  6. Step 6: Final answer
    x = 338,090.32

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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.