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Finding the Fourth Proportional to 664,388.10, 996,420.15 and 191,024.10

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Solution

The fourth proportional to 664,388.10, 996,420.15 and 191,024.10 is: 286,489.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,388.10 : 996,420.15 = 191,024.10 : x
  2. Step 2: Convert to fraction form
    664,388.10/996,420.15 = 191,024.10/x
  3. Step 3: Cross multiply
    664,388.10x = 996,420.15 × 191,024.10
  4. Step 4: Simplify right side
    664,388.10x = 190,340,262,375.62
  5. Step 5: Solve for x
    x = 190,340,262,375.62/664,388.10
  6. Step 6: Final answer
    x = 286,489.57

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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.