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Finding the Fourth Proportional to 1,362,845.31, 1,880,739.11 and 751,019.96

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Solution

The fourth proportional to 1,362,845.31, 1,880,739.11 and 751,019.96 is: 1,036,414.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,845.31 : 1,880,739.11 = 751,019.96 : x
  2. Step 2: Convert to fraction form
    1,362,845.31/1,880,739.11 = 751,019.96/x
  3. Step 3: Cross multiply
    1,362,845.31x = 1,880,739.11 × 751,019.96
  4. Step 4: Simplify right side
    1,362,845.31x = 1,412,472,603,636.49
  5. Step 5: Solve for x
    x = 1,412,472,603,636.49/1,362,845.31
  6. Step 6: Final answer
    x = 1,036,414.47

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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.