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Finding the Fourth Proportional to 573,617.95, 791,593.43 and 318,963.67

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Solution

The fourth proportional to 573,617.95, 791,593.43 and 318,963.67 is: 440,170.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,617.95 : 791,593.43 = 318,963.67 : x
  2. Step 2: Convert to fraction form
    573,617.95/791,593.43 = 318,963.67/x
  3. Step 3: Cross multiply
    573,617.95x = 791,593.43 × 318,963.67
  4. Step 4: Simplify right side
    573,617.95x = 252,489,542,006.89
  5. Step 5: Solve for x
    x = 252,489,542,006.89/573,617.95
  6. Step 6: Final answer
    x = 440,170.23

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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.