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Finding the Fourth Proportional to 481,653.09, 664,703.15 and 266,793.13

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Solution

The fourth proportional to 481,653.09, 664,703.15 and 266,793.13 is: 368,186.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,653.09 : 664,703.15 = 266,793.13 : x
  2. Step 2: Convert to fraction form
    481,653.09/664,703.15 = 266,793.13/x
  3. Step 3: Cross multiply
    481,653.09x = 664,703.15 × 266,793.13
  4. Step 4: Simplify right side
    481,653.09x = 177,338,233,909.36
  5. Step 5: Solve for x
    x = 177,338,233,909.36/481,653.09
  6. Step 6: Final answer
    x = 368,186.64

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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.