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Finding the Fourth Proportional to 618,993.55, 928,512.33 and 198,214.75

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Solution

The fourth proportional to 618,993.55, 928,512.33 and 198,214.75 is: 297,329.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,993.55 : 928,512.33 = 198,214.75 : x
  2. Step 2: Convert to fraction form
    618,993.55/928,512.33 = 198,214.75/x
  3. Step 3: Cross multiply
    618,993.55x = 928,512.33 × 198,214.75
  4. Step 4: Simplify right side
    618,993.55x = 184,044,839,362.87
  5. Step 5: Solve for x
    x = 184,044,839,362.87/618,993.55
  6. Step 6: Final answer
    x = 297,329.17

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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.