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Finding the Fourth Proportional to 501,449.70, 751,467.28 and 276,911.22

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Solution

The fourth proportional to 501,449.70, 751,467.28 and 276,911.22 is: 414,976.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,449.70 : 751,467.28 = 276,911.22 : x
  2. Step 2: Convert to fraction form
    501,449.70/751,467.28 = 276,911.22/x
  3. Step 3: Cross multiply
    501,449.70x = 751,467.28 × 276,911.22
  4. Step 4: Simplify right side
    501,449.70x = 208,089,721,294.88
  5. Step 5: Solve for x
    x = 208,089,721,294.88/501,449.70
  6. Step 6: Final answer
    x = 414,976.26

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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.