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Finding the Fourth Proportional to 488,181.90, 732,704.85 and 288,252.30

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Solution

The fourth proportional to 488,181.90, 732,704.85 and 288,252.30 is: 432,633.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,181.90 : 732,704.85 = 288,252.30 : x
  2. Step 2: Convert to fraction form
    488,181.90/732,704.85 = 288,252.30/x
  3. Step 3: Cross multiply
    488,181.90x = 732,704.85 × 288,252.30
  4. Step 4: Simplify right side
    488,181.90x = 211,203,858,233.66
  5. Step 5: Solve for x
    x = 211,203,858,233.66/488,181.90
  6. Step 6: Final answer
    x = 432,633.53

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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.