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Finding the Fourth Proportional to 371,297.84, 557,027.64 and 211,449.38

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Solution

The fourth proportional to 371,297.84, 557,027.64 and 211,449.38 is: 317,220.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,297.84 : 557,027.64 = 211,449.38 : x
  2. Step 2: Convert to fraction form
    371,297.84/557,027.64 = 211,449.38/x
  3. Step 3: Cross multiply
    371,297.84x = 557,027.64 × 211,449.38
  4. Step 4: Simplify right side
    371,297.84x = 117,783,146,335.73
  5. Step 5: Solve for x
    x = 117,783,146,335.73/371,297.84
  6. Step 6: Final answer
    x = 317,220.13

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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.