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Finding the Fourth Proportional to 465,608.58, 642,544.06 and 281,851.37

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Solution

The fourth proportional to 465,608.58, 642,544.06 and 281,851.37 is: 388,957.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,608.58 : 642,544.06 = 281,851.37 : x
  2. Step 2: Convert to fraction form
    465,608.58/642,544.06 = 281,851.37/x
  3. Step 3: Cross multiply
    465,608.58x = 642,544.06 × 281,851.37
  4. Step 4: Simplify right side
    465,608.58x = 181,101,923,596.36
  5. Step 5: Solve for x
    x = 181,101,923,596.36/465,608.58
  6. Step 6: Final answer
    x = 388,957.44

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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.