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Finding the Fourth Proportional to 544,906.35, 817,364.16 and 189,919.80

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Solution

The fourth proportional to 544,906.35, 817,364.16 and 189,919.80 is: 284,881.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,906.35 : 817,364.16 = 189,919.80 : x
  2. Step 2: Convert to fraction form
    544,906.35/817,364.16 = 189,919.80/x
  3. Step 3: Cross multiply
    544,906.35x = 817,364.16 × 189,919.80
  4. Step 4: Simplify right side
    544,906.35x = 155,233,637,794.37
  5. Step 5: Solve for x
    x = 155,233,637,794.37/544,906.35
  6. Step 6: Final answer
    x = 284,881.32

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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.