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Finding the Fourth Proportional to 1,981,573.93, 2,734,571.91 and 1,122,300.28

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Solution

The fourth proportional to 1,981,573.93, 2,734,571.91 and 1,122,300.28 is: 1,548,774.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,573.93 : 2,734,571.91 = 1,122,300.28 : x
  2. Step 2: Convert to fraction form
    1,981,573.93/2,734,571.91 = 1,122,300.28/x
  3. Step 3: Cross multiply
    1,981,573.93x = 2,734,571.91 × 1,122,300.28
  4. Step 4: Simplify right side
    1,981,573.93x = 3,069,010,820,273.14
  5. Step 5: Solve for x
    x = 3,069,010,820,273.14/1,981,573.93
  6. Step 6: Final answer
    x = 1,548,774.32

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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.