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Finding the Fourth Proportional to 618,934.35, 928,393.83 and 169,654.80

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Solution

The fourth proportional to 618,934.35, 928,393.83 and 169,654.80 is: 254,480.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,934.35 : 928,393.83 = 169,654.80 : x
  2. Step 2: Convert to fraction form
    618,934.35/928,393.83 = 169,654.80/x
  3. Step 3: Cross multiply
    618,934.35x = 928,393.83 × 169,654.80
  4. Step 4: Simplify right side
    618,934.35x = 157,506,469,549.88
  5. Step 5: Solve for x
    x = 157,506,469,549.88/618,934.35
  6. Step 6: Final answer
    x = 254,480.09

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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.