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Finding the Fourth Proportional to 488,029.96, 673,353.42 and 281,247.76

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Solution

The fourth proportional to 488,029.96, 673,353.42 and 281,247.76 is: 388,048.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,029.96 : 673,353.42 = 281,247.76 : x
  2. Step 2: Convert to fraction form
    488,029.96/673,353.42 = 281,247.76/x
  3. Step 3: Cross multiply
    488,029.96x = 673,353.42 × 281,247.76
  4. Step 4: Simplify right side
    488,029.96x = 189,379,141,063.34
  5. Step 5: Solve for x
    x = 189,379,141,063.34/488,029.96
  6. Step 6: Final answer
    x = 388,048.19

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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.