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Finding the Fourth Proportional to 479,658.90, 661,911.93 and 264,794.36

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Solution

The fourth proportional to 479,658.90, 661,911.93 and 264,794.36 is: 365,406.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,658.90 : 661,911.93 = 264,794.36 : x
  2. Step 2: Convert to fraction form
    479,658.90/661,911.93 = 264,794.36/x
  3. Step 3: Cross multiply
    479,658.90x = 661,911.93 × 264,794.36
  4. Step 4: Simplify right side
    479,658.90x = 175,270,542,571.16
  5. Step 5: Solve for x
    x = 175,270,542,571.16/479,658.90
  6. Step 6: Final answer
    x = 365,406.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.