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Finding the Fourth Proportional to 636,393.87, 954,361.17 and 186,994.53

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Solution

The fourth proportional to 636,393.87, 954,361.17 and 186,994.53 is: 280,424.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,393.87 : 954,361.17 = 186,994.53 : x
  2. Step 2: Convert to fraction form
    636,393.87/954,361.17 = 186,994.53/x
  3. Step 3: Cross multiply
    636,393.87x = 954,361.17 × 186,994.53
  4. Step 4: Simplify right side
    636,393.87x = 178,460,318,434.40
  5. Step 5: Solve for x
    x = 178,460,318,434.40/636,393.87
  6. Step 6: Final answer
    x = 280,424.32

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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.