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Finding the Fourth Proportional to 376,586.50, 519,735.45 and 217,610.50

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Solution

The fourth proportional to 376,586.50, 519,735.45 and 217,610.50 is: 300,329.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,586.50 : 519,735.45 = 217,610.50 : x
  2. Step 2: Convert to fraction form
    376,586.50/519,735.45 = 217,610.50/x
  3. Step 3: Cross multiply
    376,586.50x = 519,735.45 × 217,610.50
  4. Step 4: Simplify right side
    376,586.50x = 113,099,891,142.23
  5. Step 5: Solve for x
    x = 113,099,891,142.23/376,586.50
  6. Step 6: Final answer
    x = 300,329.12

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1.5x scale

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.