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Finding the Fourth Proportional to 573,512.16, 791,424.24 and 318,844.80

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Solution

The fourth proportional to 573,512.16, 791,424.24 and 318,844.80 is: 439,993.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,512.16 : 791,424.24 = 318,844.80 : x
  2. Step 2: Convert to fraction form
    573,512.16/791,424.24 = 318,844.80/x
  3. Step 3: Cross multiply
    573,512.16x = 791,424.24 × 318,844.80
  4. Step 4: Simplify right side
    573,512.16x = 252,341,503,517.95
  5. Step 5: Solve for x
    x = 252,341,503,517.95/573,512.16
  6. Step 6: Final answer
    x = 439,993.29

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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.