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Finding the Fourth Proportional to 376,613.20, 519,599.79 and 213,247.37

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Solution

The fourth proportional to 376,613.20, 519,599.79 and 213,247.37 is: 294,209.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,613.20 : 519,599.79 = 213,247.37 : x
  2. Step 2: Convert to fraction form
    376,613.20/519,599.79 = 213,247.37/x
  3. Step 3: Cross multiply
    376,613.20x = 519,599.79 × 213,247.37
  4. Step 4: Simplify right side
    376,613.20x = 110,803,289,969.05
  5. Step 5: Solve for x
    x = 110,803,289,969.05/376,613.20
  6. Step 6: Final answer
    x = 294,209.79

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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.