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Finding the Fourth Proportional to 573,254.98, 791,086.16 and 318,600.70

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Solution

The fourth proportional to 573,254.98, 791,086.16 and 318,600.70 is: 439,665.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,254.98 : 791,086.16 = 318,600.70 : x
  2. Step 2: Convert to fraction form
    573,254.98/791,086.16 = 318,600.70/x
  3. Step 3: Cross multiply
    573,254.98x = 791,086.16 × 318,600.70
  4. Step 4: Simplify right side
    573,254.98x = 252,040,604,336.31
  5. Step 5: Solve for x
    x = 252,040,604,336.31/573,254.98
  6. Step 6: Final answer
    x = 439,665.79

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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.