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Finding the Fourth Proportional to 488,720.20, 732,850.24 and 189,340.96

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Solution

The fourth proportional to 488,720.20, 732,850.24 and 189,340.96 is: 283,922.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,720.20 : 732,850.24 = 189,340.96 : x
  2. Step 2: Convert to fraction form
    488,720.20/732,850.24 = 189,340.96/x
  3. Step 3: Cross multiply
    488,720.20x = 732,850.24 × 189,340.96
  4. Step 4: Simplify right side
    488,720.20x = 138,758,567,977.83
  5. Step 5: Solve for x
    x = 138,758,567,977.83/488,720.20
  6. Step 6: Final answer
    x = 283,922.31

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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.