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Finding the Fourth Proportional to 792,693, 1,189,163.30 and 260,092.89

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Solution

The fourth proportional to 792,693, 1,189,163.30 and 260,092.89 is: 390,179.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,693 : 1,189,163.30 = 260,092.89 : x
  2. Step 2: Convert to fraction form
    792,693/1,189,163.30 = 260,092.89/x
  3. Step 3: Cross multiply
    792,693x = 1,189,163.30 × 260,092.89
  4. Step 4: Simplify right side
    792,693x = 309,292,918,078.47
  5. Step 5: Solve for x
    x = 309,292,918,078.47/792,693
  6. Step 6: Final answer
    x = 390,179.95

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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.