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Finding the Fourth Proportional to 481,568.80, 664,556.82 and 266,717.92

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Solution

The fourth proportional to 481,568.80, 664,556.82 and 266,717.92 is: 368,066.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,568.80 : 664,556.82 = 266,717.92 : x
  2. Step 2: Convert to fraction form
    481,568.80/664,556.82 = 266,717.92/x
  3. Step 3: Cross multiply
    481,568.80x = 664,556.82 × 266,717.92
  4. Step 4: Simplify right side
    481,568.80x = 177,249,212,752.21
  5. Step 5: Solve for x
    x = 177,249,212,752.21/481,568.80
  6. Step 6: Final answer
    x = 368,066.23

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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.