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Finding the Fourth Proportional to 664,456.60, 996,522.90 and 191,092.60

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Solution

The fourth proportional to 664,456.60, 996,522.90 and 191,092.60 is: 286,592.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,456.60 : 996,522.90 = 191,092.60 : x
  2. Step 2: Convert to fraction form
    664,456.60/996,522.90 = 191,092.60/x
  3. Step 3: Cross multiply
    664,456.60x = 996,522.90 × 191,092.60
  4. Step 4: Simplify right side
    664,456.60x = 190,428,151,920.54
  5. Step 5: Solve for x
    x = 190,428,151,920.54/664,456.60
  6. Step 6: Final answer
    x = 286,592.31

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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.