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Finding the Fourth Proportional to 481,768.80, 664,787.14 and 266,855.56

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Solution

The fourth proportional to 481,768.80, 664,787.14 and 266,855.56 is: 368,230.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,768.80 : 664,787.14 = 266,855.56 : x
  2. Step 2: Convert to fraction form
    481,768.80/664,787.14 = 266,855.56/x
  3. Step 3: Cross multiply
    481,768.80x = 664,787.14 × 266,855.56
  4. Step 4: Simplify right side
    481,768.80x = 177,402,144,525.50
  5. Step 5: Solve for x
    x = 177,402,144,525.50/481,768.80
  6. Step 6: Final answer
    x = 368,230.87

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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.