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Finding the Fourth Proportional to 400,612.73, 552,845.69 and 219,336.17

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Solution

The fourth proportional to 400,612.73, 552,845.69 and 219,336.17 is: 302,683.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,612.73 : 552,845.69 = 219,336.17 : x
  2. Step 2: Convert to fraction form
    400,612.73/552,845.69 = 219,336.17/x
  3. Step 3: Cross multiply
    400,612.73x = 552,845.69 × 219,336.17
  4. Step 4: Simplify right side
    400,612.73x = 121,259,052,384.70
  5. Step 5: Solve for x
    x = 121,259,052,384.70/400,612.73
  6. Step 6: Final answer
    x = 302,683.98

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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.