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Finding the Fourth Proportional to 1,832,608.74, 2,749,984.74 and 767,561.58

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Solution

The fourth proportional to 1,832,608.74, 2,749,984.74 and 767,561.58 is: 1,151,791.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,832,608.74 : 2,749,984.74 = 767,561.58 : x
  2. Step 2: Convert to fraction form
    1,832,608.74/2,749,984.74 = 767,561.58/x
  3. Step 3: Cross multiply
    1,832,608.74x = 2,749,984.74 × 767,561.58
  4. Step 4: Simplify right side
    1,832,608.74x = 2,110,782,632,010.29
  5. Step 5: Solve for x
    x = 2,110,782,632,010.29/1,832,608.74
  6. Step 6: Final answer
    x = 1,151,791.21

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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.