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Finding the Fourth Proportional to 381,797.02, 526,816.64 and 220,667.06

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Solution

The fourth proportional to 381,797.02, 526,816.64 and 220,667.06 is: 304,483.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,797.02 : 526,816.64 = 220,667.06 : x
  2. Step 2: Convert to fraction form
    381,797.02/526,816.64 = 220,667.06/x
  3. Step 3: Cross multiply
    381,797.02x = 526,816.64 × 220,667.06
  4. Step 4: Simplify right side
    381,797.02x = 116,251,079,107.88
  5. Step 5: Solve for x
    x = 116,251,079,107.88/381,797.02
  6. Step 6: Final answer
    x = 304,483.99

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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.