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Finding the Fourth Proportional to 481,632.48, 664,653.60 and 266,781.60

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Solution

The fourth proportional to 481,632.48, 664,653.60 and 266,781.60 is: 368,159.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,632.48 : 664,653.60 = 266,781.60 : x
  2. Step 2: Convert to fraction form
    481,632.48/664,653.60 = 266,781.60/x
  3. Step 3: Cross multiply
    481,632.48x = 664,653.60 × 266,781.60
  4. Step 4: Simplify right side
    481,632.48x = 177,317,350,853.76
  5. Step 5: Solve for x
    x = 177,317,350,853.76/481,632.48
  6. Step 6: Final answer
    x = 368,159.04

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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.