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Finding the Fourth Proportional to 376,652.34, 519,653.52 and 213,286.50

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Solution

The fourth proportional to 376,652.34, 519,653.52 and 213,286.50 is: 294,263.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,652.34 : 519,653.52 = 213,286.50 : x
  2. Step 2: Convert to fraction form
    376,652.34/519,653.52 = 213,286.50/x
  3. Step 3: Cross multiply
    376,652.34x = 519,653.52 × 213,286.50
  4. Step 4: Simplify right side
    376,652.34x = 110,835,080,493.48
  5. Step 5: Solve for x
    x = 110,835,080,493.48/376,652.34
  6. Step 6: Final answer
    x = 294,263.62

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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.