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Finding the Fourth Proportional to 697,231.32, 962,099.94 and 391,244.52

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Solution

The fourth proportional to 697,231.32, 962,099.94 and 391,244.52 is: 539,872.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,231.32 : 962,099.94 = 391,244.52 : x
  2. Step 2: Convert to fraction form
    697,231.32/962,099.94 = 391,244.52/x
  3. Step 3: Cross multiply
    697,231.32x = 962,099.94 × 391,244.52
  4. Step 4: Simplify right side
    697,231.32x = 376,416,329,217.33
  5. Step 5: Solve for x
    x = 376,416,329,217.33/697,231.32
  6. Step 6: Final answer
    x = 539,872.95

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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.