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Finding the Fourth Proportional to 573,546.08, 791,489.20 and 318,895.04

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Solution

The fourth proportional to 573,546.08, 791,489.20 and 318,895.04 is: 440,072.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,546.08 : 791,489.20 = 318,895.04 : x
  2. Step 2: Convert to fraction form
    573,546.08/791,489.20 = 318,895.04/x
  3. Step 3: Cross multiply
    573,546.08x = 791,489.20 × 318,895.04
  4. Step 4: Simplify right side
    573,546.08x = 252,401,980,093.57
  5. Step 5: Solve for x
    x = 252,401,980,093.57/573,546.08
  6. Step 6: Final answer
    x = 440,072.71

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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.