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Finding the Fourth Proportional to 591,268.80, 887,340.60 and 391,522.80

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Solution

The fourth proportional to 591,268.80, 887,340.60 and 391,522.80 is: 587,573.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,268.80 : 887,340.60 = 391,522.80 : x
  2. Step 2: Convert to fraction form
    591,268.80/887,340.60 = 391,522.80/x
  3. Step 3: Cross multiply
    591,268.80x = 887,340.60 × 391,522.80
  4. Step 4: Simplify right side
    591,268.80x = 347,414,076,265.68
  5. Step 5: Solve for x
    x = 347,414,076,265.68/591,268.80
  6. Step 6: Final answer
    x = 587,573.83

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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.