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Finding the Fourth Proportional to 664,355.28, 996,050.14 and 264,876.24

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Solution

The fourth proportional to 664,355.28, 996,050.14 and 264,876.24 is: 397,121.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,355.28 : 996,050.14 = 264,876.24 : x
  2. Step 2: Convert to fraction form
    664,355.28/996,050.14 = 264,876.24/x
  3. Step 3: Cross multiply
    664,355.28x = 996,050.14 × 264,876.24
  4. Step 4: Simplify right side
    664,355.28x = 263,830,015,934.67
  5. Step 5: Solve for x
    x = 263,830,015,934.67/664,355.28
  6. Step 6: Final answer
    x = 397,121.88

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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.