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Finding the Fourth Proportional to 625,944.42, 863,804.25 and 339,462.54

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Solution

The fourth proportional to 625,944.42, 863,804.25 and 339,462.54 is: 468,458.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,944.42 : 863,804.25 = 339,462.54 : x
  2. Step 2: Convert to fraction form
    625,944.42/863,804.25 = 339,462.54/x
  3. Step 3: Cross multiply
    625,944.42x = 863,804.25 × 339,462.54
  4. Step 4: Simplify right side
    625,944.42x = 293,229,184,767.80
  5. Step 5: Solve for x
    x = 293,229,184,767.80/625,944.42
  6. Step 6: Final answer
    x = 468,458.82

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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.