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Finding the Fourth Proportional to 481,040.55, 721,809.69 and 349,010.55

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Solution

The fourth proportional to 481,040.55, 721,809.69 and 349,010.55 is: 523,696.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,040.55 : 721,809.69 = 349,010.55 : x
  2. Step 2: Convert to fraction form
    481,040.55/721,809.69 = 349,010.55/x
  3. Step 3: Cross multiply
    481,040.55x = 721,809.69 × 349,010.55
  4. Step 4: Simplify right side
    481,040.55x = 251,919,196,902.23
  5. Step 5: Solve for x
    x = 251,919,196,902.23/481,040.55
  6. Step 6: Final answer
    x = 523,696.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.