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Finding the Fourth Proportional to 479,438.36, 661,873.66 and 350,231.77

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Solution

The fourth proportional to 479,438.36, 661,873.66 and 350,231.77 is: 483,501.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,438.36 : 661,873.66 = 350,231.77 : x
  2. Step 2: Convert to fraction form
    479,438.36/661,873.66 = 350,231.77/x
  3. Step 3: Cross multiply
    479,438.36x = 661,873.66 × 350,231.77
  4. Step 4: Simplify right side
    479,438.36x = 231,809,181,656.96
  5. Step 5: Solve for x
    x = 231,809,181,656.96/479,438.36
  6. Step 6: Final answer
    x = 483,501.53

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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.