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Finding the Fourth Proportional to 376,876.80, 529,027.20 and 376,876.80

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Solution

The fourth proportional to 376,876.80, 529,027.20 and 376,876.80 is: 529,027.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,876.80 : 529,027.20 = 376,876.80 : x
  2. Step 2: Convert to fraction form
    376,876.80/529,027.20 = 376,876.80/x
  3. Step 3: Cross multiply
    376,876.80x = 529,027.20 × 376,876.80
  4. Step 4: Simplify right side
    376,876.80x = 199,378,078,248.96
  5. Step 5: Solve for x
    x = 199,378,078,248.96/376,876.80
  6. Step 6: Final answer
    x = 529,027.20

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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.