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Finding the Fourth Proportional to 479,449.15, 661,888.59 and 350,242.54

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Solution

The fourth proportional to 479,449.15, 661,888.59 and 350,242.54 is: 483,516.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,449.15 : 661,888.59 = 350,242.54 : x
  2. Step 2: Convert to fraction form
    479,449.15/661,888.59 = 350,242.54/x
  3. Step 3: Cross multiply
    479,449.15x = 661,888.59 × 350,242.54
  4. Step 4: Simplify right side
    479,449.15x = 231,821,537,552.68
  5. Step 5: Solve for x
    x = 231,821,537,552.68/479,449.15
  6. Step 6: Final answer
    x = 483,516.42

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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.