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Finding the Fourth Proportional to 573,553.42, 791,498.91 and 318,902.38

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Solution

The fourth proportional to 573,553.42, 791,498.91 and 318,902.38 is: 440,082.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,553.42 : 791,498.91 = 318,902.38 : x
  2. Step 2: Convert to fraction form
    573,553.42/791,498.91 = 318,902.38/x
  3. Step 3: Cross multiply
    573,553.42x = 791,498.91 × 318,902.38
  4. Step 4: Simplify right side
    573,553.42x = 252,410,886,166.41
  5. Step 5: Solve for x
    x = 252,410,886,166.41/573,553.42
  6. Step 6: Final answer
    x = 440,082.61

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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.