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Finding the Fourth Proportional to 530,819.88, 796,484.76 and 331,089

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Solution

The fourth proportional to 530,819.88, 796,484.76 and 331,089 is: 496,792.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,819.88 : 796,484.76 = 331,089 : x
  2. Step 2: Convert to fraction form
    530,819.88/796,484.76 = 331,089/x
  3. Step 3: Cross multiply
    530,819.88x = 796,484.76 × 331,089
  4. Step 4: Simplify right side
    530,819.88x = 263,707,342,703.64
  5. Step 5: Solve for x
    x = 263,707,342,703.64/530,819.88
  6. Step 6: Final answer
    x = 496,792.51

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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.