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Finding the Fourth Proportional to 488,277.25, 732,410.43 and 172,660.36

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Solution

The fourth proportional to 488,277.25, 732,410.43 and 172,660.36 is: 258,988.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,277.25 : 732,410.43 = 172,660.36 : x
  2. Step 2: Convert to fraction form
    488,277.25/732,410.43 = 172,660.36/x
  3. Step 3: Cross multiply
    488,277.25x = 732,410.43 × 172,660.36
  4. Step 4: Simplify right side
    488,277.25x = 126,458,248,511.56
  5. Step 5: Solve for x
    x = 126,458,248,511.56/488,277.25
  6. Step 6: Final answer
    x = 258,988.61

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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.