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Finding the Fourth Proportional to 1,922,647.88, 2,650,841.69 and 1,233,102.57

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Solution

The fourth proportional to 1,922,647.88, 2,650,841.69 and 1,233,102.57 is: 1,700,134.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922,647.88 : 2,650,841.69 = 1,233,102.57 : x
  2. Step 2: Convert to fraction form
    1,922,647.88/2,650,841.69 = 1,233,102.57/x
  3. Step 3: Cross multiply
    1,922,647.88x = 2,650,841.69 × 1,233,102.57
  4. Step 4: Simplify right side
    1,922,647.88x = 3,268,759,694,436.63
  5. Step 5: Solve for x
    x = 3,268,759,694,436.63/1,922,647.88
  6. Step 6: Final answer
    x = 1,700,134.35

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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.