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Finding the Fourth Proportional to 481,745.84, 664,790.32 and 266,889.28

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Solution

The fourth proportional to 481,745.84, 664,790.32 and 266,889.28 is: 368,296.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,745.84 : 664,790.32 = 266,889.28 : x
  2. Step 2: Convert to fraction form
    481,745.84/664,790.32 = 266,889.28/x
  3. Step 3: Cross multiply
    481,745.84x = 664,790.32 × 266,889.28
  4. Step 4: Simplify right side
    481,745.84x = 177,425,409,855.77
  5. Step 5: Solve for x
    x = 177,425,409,855.77/481,745.84
  6. Step 6: Final answer
    x = 368,296.71

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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.