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Finding the Fourth Proportional to 479,777.23, 662,094.86 and 261,990.47

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Solution

The fourth proportional to 479,777.23, 662,094.86 and 261,990.47 is: 361,548.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,777.23 : 662,094.86 = 261,990.47 : x
  2. Step 2: Convert to fraction form
    479,777.23/662,094.86 = 261,990.47/x
  3. Step 3: Cross multiply
    479,777.23x = 662,094.86 × 261,990.47
  4. Step 4: Simplify right side
    479,777.23x = 173,462,542,218.34
  5. Step 5: Solve for x
    x = 173,462,542,218.34/479,777.23
  6. Step 6: Final answer
    x = 361,548.10

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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.