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Finding the Fourth Proportional to 330,152.64, 495,511.74 and 327,667.56

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Solution

The fourth proportional to 330,152.64, 495,511.74 and 327,667.56 is: 491,781.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,152.64 : 495,511.74 = 327,667.56 : x
  2. Step 2: Convert to fraction form
    330,152.64/495,511.74 = 327,667.56/x
  3. Step 3: Cross multiply
    330,152.64x = 495,511.74 × 327,667.56
  4. Step 4: Simplify right side
    330,152.64x = 162,363,122,797.15
  5. Step 5: Solve for x
    x = 162,363,122,797.15/330,152.64
  6. Step 6: Final answer
    x = 491,781.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.