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Finding the Fourth Proportional to 530,796.88, 796,450.26 and 331,066

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Solution

The fourth proportional to 530,796.88, 796,450.26 and 331,066 is: 496,758.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,796.88 : 796,450.26 = 331,066 : x
  2. Step 2: Convert to fraction form
    530,796.88/796,450.26 = 331,066/x
  3. Step 3: Cross multiply
    530,796.88x = 796,450.26 × 331,066
  4. Step 4: Simplify right side
    530,796.88x = 263,677,601,777.16
  5. Step 5: Solve for x
    x = 263,677,601,777.16/530,796.88
  6. Step 6: Final answer
    x = 496,758.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.