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Finding the Fourth Proportional to 481,651.35, 664,678.91 and 266,805.33

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Solution

The fourth proportional to 481,651.35, 664,678.91 and 266,805.33 is: 368,191.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,651.35 : 664,678.91 = 266,805.33 : x
  2. Step 2: Convert to fraction form
    481,651.35/664,678.91 = 266,805.33/x
  3. Step 3: Cross multiply
    481,651.35x = 664,678.91 × 266,805.33
  4. Step 4: Simplify right side
    481,651.35x = 177,339,875,926.59
  5. Step 5: Solve for x
    x = 177,339,875,926.59/481,651.35
  6. Step 6: Final answer
    x = 368,191.38

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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.