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Finding the Fourth Proportional to 534,578.22, 801,014.37 and 391,761.60

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Solution

The fourth proportional to 534,578.22, 801,014.37 and 391,761.60 is: 587,017.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,578.22 : 801,014.37 = 391,761.60 : x
  2. Step 2: Convert to fraction form
    534,578.22/801,014.37 = 391,761.60/x
  3. Step 3: Cross multiply
    534,578.22x = 801,014.37 × 391,761.60
  4. Step 4: Simplify right side
    534,578.22x = 313,806,671,214.19
  5. Step 5: Solve for x
    x = 313,806,671,214.19/534,578.22
  6. Step 6: Final answer
    x = 587,017.31

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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.