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Finding the Fourth Proportional to 455,141.80, 682,712.70 and 295,474.60

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Solution

The fourth proportional to 455,141.80, 682,712.70 and 295,474.60 is: 443,211.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,141.80 : 682,712.70 = 295,474.60 : x
  2. Step 2: Convert to fraction form
    455,141.80/682,712.70 = 295,474.60/x
  3. Step 3: Cross multiply
    455,141.80x = 682,712.70 × 295,474.60
  4. Step 4: Simplify right side
    455,141.80x = 201,724,261,947.42
  5. Step 5: Solve for x
    x = 201,724,261,947.42/455,141.80
  6. Step 6: Final answer
    x = 443,211.90

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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.