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Finding the Fourth Proportional to 421,846.12, 632,572.32 and 244,403.89

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Solution

The fourth proportional to 421,846.12, 632,572.32 and 244,403.89 is: 366,491.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,846.12 : 632,572.32 = 244,403.89 : x
  2. Step 2: Convert to fraction form
    421,846.12/632,572.32 = 244,403.89/x
  3. Step 3: Cross multiply
    421,846.12x = 632,572.32 × 244,403.89
  4. Step 4: Simplify right side
    421,846.12x = 154,603,135,714.33
  5. Step 5: Solve for x
    x = 154,603,135,714.33/421,846.12
  6. Step 6: Final answer
    x = 366,491.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.