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Finding the Fourth Proportional to 573,549.32, 791,481.78 and 318,895.88

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Solution

The fourth proportional to 573,549.32, 791,481.78 and 318,895.88 is: 440,067.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,549.32 : 791,481.78 = 318,895.88 : x
  2. Step 2: Convert to fraction form
    573,549.32/791,481.78 = 318,895.88/x
  3. Step 3: Cross multiply
    573,549.32x = 791,481.78 × 318,895.88
  4. Step 4: Simplify right side
    573,549.32x = 252,400,278,737.07
  5. Step 5: Solve for x
    x = 252,400,278,737.07/573,549.32
  6. Step 6: Final answer
    x = 440,067.26

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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.