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Finding the Fourth Proportional to 366,812.16, 550,728 and 189,450.24

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Solution

The fourth proportional to 366,812.16, 550,728 and 189,450.24 is: 284,438.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,812.16 : 550,728 = 189,450.24 : x
  2. Step 2: Convert to fraction form
    366,812.16/550,728 = 189,450.24/x
  3. Step 3: Cross multiply
    366,812.16x = 550,728 × 189,450.24
  4. Step 4: Simplify right side
    366,812.16x = 104,335,551,774.72
  5. Step 5: Solve for x
    x = 104,335,551,774.72/366,812.16
  6. Step 6: Final answer
    x = 284,438.64

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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.