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Finding the Fourth Proportional to 863,699.82, 1,191,907.44 and 481,751.34

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Solution

The fourth proportional to 863,699.82, 1,191,907.44 and 481,751.34 is: 664,817.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,699.82 : 1,191,907.44 = 481,751.34 : x
  2. Step 2: Convert to fraction form
    863,699.82/1,191,907.44 = 481,751.34/x
  3. Step 3: Cross multiply
    863,699.82x = 1,191,907.44 × 481,751.34
  4. Step 4: Simplify right side
    863,699.82x = 574,203,006,375.97
  5. Step 5: Solve for x
    x = 574,203,006,375.97/863,699.82
  6. Step 6: Final answer
    x = 664,817.79

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1.5x scale

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.