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Finding the Fourth Proportional to 573,551.42, 791,496.16 and 318,900.38

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Solution

The fourth proportional to 573,551.42, 791,496.16 and 318,900.38 is: 440,079.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,551.42 : 791,496.16 = 318,900.38 : x
  2. Step 2: Convert to fraction form
    573,551.42/791,496.16 = 318,900.38/x
  3. Step 3: Cross multiply
    573,551.42x = 791,496.16 × 318,900.38
  4. Step 4: Simplify right side
    573,551.42x = 252,408,420,640.56
  5. Step 5: Solve for x
    x = 252,408,420,640.56/573,551.42
  6. Step 6: Final answer
    x = 440,079.85

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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.