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Finding the Fourth Proportional to 544,774, 817,165.11 and 189,787.45

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Solution

The fourth proportional to 544,774, 817,165.11 and 189,787.45 is: 284,682.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,774 : 817,165.11 = 189,787.45 : x
  2. Step 2: Convert to fraction form
    544,774/817,165.11 = 189,787.45/x
  3. Step 3: Cross multiply
    544,774x = 817,165.11 × 189,787.45
  4. Step 4: Simplify right side
    544,774x = 155,087,682,455.87
  5. Step 5: Solve for x
    x = 155,087,682,455.87/544,774
  6. Step 6: Final answer
    x = 284,682.61

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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.