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Finding the Fourth Proportional to 488,327.49, 732,701.73 and 263,643.30

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Solution

The fourth proportional to 488,327.49, 732,701.73 and 263,643.30 is: 395,578.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,327.49 : 732,701.73 = 263,643.30 : x
  2. Step 2: Convert to fraction form
    488,327.49/732,701.73 = 263,643.30/x
  3. Step 3: Cross multiply
    488,327.49x = 732,701.73 × 263,643.30
  4. Step 4: Simplify right side
    488,327.49x = 193,171,902,012.91
  5. Step 5: Solve for x
    x = 193,171,902,012.91/488,327.49
  6. Step 6: Final answer
    x = 395,578.59

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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.