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Finding the Fourth Proportional to 428,562.60, 591,296.61 and 337,636.30

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Solution

The fourth proportional to 428,562.60, 591,296.61 and 337,636.30 is: 465,843.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,562.60 : 591,296.61 = 337,636.30 : x
  2. Step 2: Convert to fraction form
    428,562.60/591,296.61 = 337,636.30/x
  3. Step 3: Cross multiply
    428,562.60x = 591,296.61 × 337,636.30
  4. Step 4: Simplify right side
    428,562.60x = 199,643,198,600.32
  5. Step 5: Solve for x
    x = 199,643,198,600.32/428,562.60
  6. Step 6: Final answer
    x = 465,843.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.