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Finding the Fourth Proportional to 618,363.62, 928,054.14 and 263,778.02

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Solution

The fourth proportional to 618,363.62, 928,054.14 and 263,778.02 is: 395,884.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,363.62 : 928,054.14 = 263,778.02 : x
  2. Step 2: Convert to fraction form
    618,363.62/928,054.14 = 263,778.02/x
  3. Step 3: Cross multiply
    618,363.62x = 928,054.14 × 263,778.02
  4. Step 4: Simplify right side
    618,363.62x = 244,800,283,502.00
  5. Step 5: Solve for x
    x = 244,800,283,502.00/618,363.62
  6. Step 6: Final answer
    x = 395,884.03

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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.