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Finding the Fourth Proportional to 507,218.50, 699,956.52 and 274,644.34

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Solution

The fourth proportional to 507,218.50, 699,956.52 and 274,644.34 is: 379,006.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,218.50 : 699,956.52 = 274,644.34 : x
  2. Step 2: Convert to fraction form
    507,218.50/699,956.52 = 274,644.34/x
  3. Step 3: Cross multiply
    507,218.50x = 699,956.52 × 274,644.34
  4. Step 4: Simplify right side
    507,218.50x = 192,239,096,464.10
  5. Step 5: Solve for x
    x = 192,239,096,464.10/507,218.50
  6. Step 6: Final answer
    x = 379,006.48

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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.