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Finding the Fourth Proportional to 2,494,811.85, 3,742,679.49 and 789,384.54

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Solution

The fourth proportional to 2,494,811.85, 3,742,679.49 and 789,384.54 is: 1,184,222.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,494,811.85 : 3,742,679.49 = 789,384.54 : x
  2. Step 2: Convert to fraction form
    2,494,811.85/3,742,679.49 = 789,384.54/x
  3. Step 3: Cross multiply
    2,494,811.85x = 3,742,679.49 × 789,384.54
  4. Step 4: Simplify right side
    2,494,811.85x = 2,954,413,327,581.09
  5. Step 5: Solve for x
    x = 2,954,413,327,581.09/2,494,811.85
  6. Step 6: Final answer
    x = 1,184,222.90

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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.