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Finding the Fourth Proportional to 544,756.26, 817,138.02 and 189,777

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Solution

The fourth proportional to 544,756.26, 817,138.02 and 189,777 is: 284,666.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,756.26 : 817,138.02 = 189,777 : x
  2. Step 2: Convert to fraction form
    544,756.26/817,138.02 = 189,777/x
  3. Step 3: Cross multiply
    544,756.26x = 817,138.02 × 189,777
  4. Step 4: Simplify right side
    544,756.26x = 155,074,002,021.54
  5. Step 5: Solve for x
    x = 155,074,002,021.54/544,756.26
  6. Step 6: Final answer
    x = 284,666.76

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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.