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Finding the Fourth Proportional to 532,375.60, 798,563.40 and 343,418.80

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Solution

The fourth proportional to 532,375.60, 798,563.40 and 343,418.80 is: 515,128.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,375.60 : 798,563.40 = 343,418.80 : x
  2. Step 2: Convert to fraction form
    532,375.60/798,563.40 = 343,418.80/x
  3. Step 3: Cross multiply
    532,375.60x = 798,563.40 × 343,418.80
  4. Step 4: Simplify right side
    532,375.60x = 274,241,684,551.92
  5. Step 5: Solve for x
    x = 274,241,684,551.92/532,375.60
  6. Step 6: Final answer
    x = 515,128.20

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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.