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Finding the Fourth Proportional to 376,912.30, 529,076.90 and 376,912.30

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Solution

The fourth proportional to 376,912.30, 529,076.90 and 376,912.30 is: 529,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,912.30 : 529,076.90 = 376,912.30 : x
  2. Step 2: Convert to fraction form
    376,912.30/529,076.90 = 376,912.30/x
  3. Step 3: Cross multiply
    376,912.30x = 529,076.90 × 376,912.30
  4. Step 4: Simplify right side
    376,912.30x = 199,415,591,255.87
  5. Step 5: Solve for x
    x = 199,415,591,255.87/376,912.30
  6. Step 6: Final answer
    x = 529,076.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.