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Finding the Fourth Proportional to 1,090,944.72, 1,505,968.20 and 733,456.08

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Solution

The fourth proportional to 1,090,944.72, 1,505,968.20 and 733,456.08 is: 1,012,481.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,944.72 : 1,505,968.20 = 733,456.08 : x
  2. Step 2: Convert to fraction form
    1,090,944.72/1,505,968.20 = 733,456.08/x
  3. Step 3: Cross multiply
    1,090,944.72x = 1,505,968.20 × 733,456.08
  4. Step 4: Simplify right side
    1,090,944.72x = 1,104,561,532,576.66
  5. Step 5: Solve for x
    x = 1,104,561,532,576.66/1,090,944.72
  6. Step 6: Final answer
    x = 1,012,481.67

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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.