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Finding the Fourth Proportional to 544,908.35, 817,367.16 and 189,921.80

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Solution

The fourth proportional to 544,908.35, 817,367.16 and 189,921.80 is: 284,884.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,908.35 : 817,367.16 = 189,921.80 : x
  2. Step 2: Convert to fraction form
    544,908.35/817,367.16 = 189,921.80/x
  3. Step 3: Cross multiply
    544,908.35x = 817,367.16 × 189,921.80
  4. Step 4: Simplify right side
    544,908.35x = 155,235,842,288.09
  5. Step 5: Solve for x
    x = 155,235,842,288.09/544,908.35
  6. Step 6: Final answer
    x = 284,884.32

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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.