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Finding the Fourth Proportional to 295,516.80, 407,536.38 and 235,286.28

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Solution

The fourth proportional to 295,516.80, 407,536.38 and 235,286.28 is: 324,474.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,516.80 : 407,536.38 = 235,286.28 : x
  2. Step 2: Convert to fraction form
    295,516.80/407,536.38 = 235,286.28/x
  3. Step 3: Cross multiply
    295,516.80x = 407,536.38 × 235,286.28
  4. Step 4: Simplify right side
    295,516.80x = 95,887,718,814.87
  5. Step 5: Solve for x
    x = 95,887,718,814.87/295,516.80
  6. Step 6: Final answer
    x = 324,474.68

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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.