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Finding the Fourth Proportional to 400,662.85, 552,914.63 and 219,374.73

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Solution

The fourth proportional to 400,662.85, 552,914.63 and 219,374.73 is: 302,737.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,662.85 : 552,914.63 = 219,374.73 : x
  2. Step 2: Convert to fraction form
    400,662.85/552,914.63 = 219,374.73/x
  3. Step 3: Cross multiply
    400,662.85x = 552,914.63 × 219,374.73
  4. Step 4: Simplify right side
    400,662.85x = 121,295,494,904.73
  5. Step 5: Solve for x
    x = 121,295,494,904.73/400,662.85
  6. Step 6: Final answer
    x = 302,737.06

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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.