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Finding the Fourth Proportional to 664,362.90, 996,061.41 and 264,883.86

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Solution

The fourth proportional to 664,362.90, 996,061.41 and 264,883.86 is: 397,133.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,362.90 : 996,061.41 = 264,883.86 : x
  2. Step 2: Convert to fraction form
    664,362.90/996,061.41 = 264,883.86/x
  3. Step 3: Cross multiply
    664,362.90x = 996,061.41 × 264,883.86
  4. Step 4: Simplify right side
    664,362.90x = 263,840,591,077.84
  5. Step 5: Solve for x
    x = 263,840,591,077.84/664,362.90
  6. Step 6: Final answer
    x = 397,133.24

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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.