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Finding the Fourth Proportional to 376,539.75, 519,628.50 and 206,777.52

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Solution

The fourth proportional to 376,539.75, 519,628.50 and 206,777.52 is: 285,354.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,539.75 : 519,628.50 = 206,777.52 : x
  2. Step 2: Convert to fraction form
    376,539.75/519,628.50 = 206,777.52/x
  3. Step 3: Cross multiply
    376,539.75x = 519,628.50 × 206,777.52
  4. Step 4: Simplify right side
    376,539.75x = 107,447,492,551.32
  5. Step 5: Solve for x
    x = 107,447,492,551.32/376,539.75
  6. Step 6: Final answer
    x = 285,354.98

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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.