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Finding the Fourth Proportional to 488,690.20, 733,841.42 and 329,787

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Solution

The fourth proportional to 488,690.20, 733,841.42 and 329,787 is: 495,224.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,690.20 : 733,841.42 = 329,787 : x
  2. Step 2: Convert to fraction form
    488,690.20/733,841.42 = 329,787/x
  3. Step 3: Cross multiply
    488,690.20x = 733,841.42 × 329,787
  4. Step 4: Simplify right side
    488,690.20x = 242,011,360,377.54
  5. Step 5: Solve for x
    x = 242,011,360,377.54/488,690.20
  6. Step 6: Final answer
    x = 495,224.50

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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.