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Finding the Fourth Proportional to 393,796.19, 543,506.57 and 228,200.94

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Solution

The fourth proportional to 393,796.19, 543,506.57 and 228,200.94 is: 314,956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,796.19 : 543,506.57 = 228,200.94 : x
  2. Step 2: Convert to fraction form
    393,796.19/543,506.57 = 228,200.94/x
  3. Step 3: Cross multiply
    393,796.19x = 543,506.57 × 228,200.94
  4. Step 4: Simplify right side
    393,796.19x = 124,028,709,884.93
  5. Step 5: Solve for x
    x = 124,028,709,884.93/393,796.19
  6. Step 6: Final answer
    x = 314,956.60

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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.