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Finding the Fourth Proportional to 439,337.73, 658,877.42 and 186,616.21

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Solution

The fourth proportional to 439,337.73, 658,877.42 and 186,616.21 is: 279,869.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,337.73 : 658,877.42 = 186,616.21 : x
  2. Step 2: Convert to fraction form
    439,337.73/658,877.42 = 186,616.21/x
  3. Step 3: Cross multiply
    439,337.73x = 658,877.42 × 186,616.21
  4. Step 4: Simplify right side
    439,337.73x = 122,957,205,094.51
  5. Step 5: Solve for x
    x = 122,957,205,094.51/439,337.73
  6. Step 6: Final answer
    x = 279,869.44

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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.