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Finding the Fourth Proportional to 378,954.44, 565,137.85 and 373,869.68

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Solution

The fourth proportional to 378,954.44, 565,137.85 and 373,869.68 is: 557,554.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,954.44 : 565,137.85 = 373,869.68 : x
  2. Step 2: Convert to fraction form
    378,954.44/565,137.85 = 373,869.68/x
  3. Step 3: Cross multiply
    378,954.44x = 565,137.85 × 373,869.68
  4. Step 4: Simplify right side
    378,954.44x = 211,287,907,135.39
  5. Step 5: Solve for x
    x = 211,287,907,135.39/378,954.44
  6. Step 6: Final answer
    x = 557,554.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.