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Finding the Fourth Proportional to 636,321.87, 954,253.17 and 186,922.53

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Solution

The fourth proportional to 636,321.87, 954,253.17 and 186,922.53 is: 280,316.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,321.87 : 954,253.17 = 186,922.53 : x
  2. Step 2: Convert to fraction form
    636,321.87/954,253.17 = 186,922.53/x
  3. Step 3: Cross multiply
    636,321.87x = 954,253.17 × 186,922.53
  4. Step 4: Simplify right side
    636,321.87x = 178,371,416,796.92
  5. Step 5: Solve for x
    x = 178,371,416,796.92/636,321.87
  6. Step 6: Final answer
    x = 280,316.34

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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.