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Finding the Fourth Proportional to 530,874.34, 796,638.75 and 215,333.98

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Solution

The fourth proportional to 530,874.34, 796,638.75 and 215,333.98 is: 323,133.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,874.34 : 796,638.75 = 215,333.98 : x
  2. Step 2: Convert to fraction form
    530,874.34/796,638.75 = 215,333.98/x
  3. Step 3: Cross multiply
    530,874.34x = 796,638.75 × 215,333.98
  4. Step 4: Simplify right side
    530,874.34x = 171,543,392,659.73
  5. Step 5: Solve for x
    x = 171,543,392,659.73/530,874.34
  6. Step 6: Final answer
    x = 323,133.71

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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.