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Finding the Fourth Proportional to 394,898.24, 544,972.08 and 216,050.24

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Solution

The fourth proportional to 394,898.24, 544,972.08 and 216,050.24 is: 298,156.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,898.24 : 544,972.08 = 216,050.24 : x
  2. Step 2: Convert to fraction form
    394,898.24/544,972.08 = 216,050.24/x
  3. Step 3: Cross multiply
    394,898.24x = 544,972.08 × 216,050.24
  4. Step 4: Simplify right side
    394,898.24x = 117,741,348,677.30
  5. Step 5: Solve for x
    x = 117,741,348,677.30/394,898.24
  6. Step 6: Final answer
    x = 298,156.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.