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Finding the Fourth Proportional to 481,403.52, 664,357.59 and 266,543.55

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Solution

The fourth proportional to 481,403.52, 664,357.59 and 266,543.55 is: 367,841.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,403.52 : 664,357.59 = 266,543.55 : x
  2. Step 2: Convert to fraction form
    481,403.52/664,357.59 = 266,543.55/x
  3. Step 3: Cross multiply
    481,403.52x = 664,357.59 × 266,543.55
  4. Step 4: Simplify right side
    481,403.52x = 177,080,230,508.05
  5. Step 5: Solve for x
    x = 177,080,230,508.05/481,403.52
  6. Step 6: Final answer
    x = 367,841.58

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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.