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Finding the Fourth Proportional to 551,351.99, 826,639.15 and 214,111.73

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Solution

The fourth proportional to 551,351.99, 826,639.15 and 214,111.73 is: 321,016.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,351.99 : 826,639.15 = 214,111.73 : x
  2. Step 2: Convert to fraction form
    551,351.99/826,639.15 = 214,111.73/x
  3. Step 3: Cross multiply
    551,351.99x = 826,639.15 × 214,111.73
  4. Step 4: Simplify right side
    551,351.99x = 176,993,138,492.23
  5. Step 5: Solve for x
    x = 176,993,138,492.23/551,351.99
  6. Step 6: Final answer
    x = 321,016.60

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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.