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Finding the Fourth Proportional to 3,848,888.98, 5,774,616.06 and 1,290,356.88

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Solution

The fourth proportional to 3,848,888.98, 5,774,616.06 and 1,290,356.88 is: 1,935,965.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848,888.98 : 5,774,616.06 = 1,290,356.88 : x
  2. Step 2: Convert to fraction form
    3,848,888.98/5,774,616.06 = 1,290,356.88/x
  3. Step 3: Cross multiply
    3,848,888.98x = 5,774,616.06 × 1,290,356.88
  4. Step 4: Simplify right side
    3,848,888.98x = 7,451,315,562,379.49
  5. Step 5: Solve for x
    x = 7,451,315,562,379.49/3,848,888.98
  6. Step 6: Final answer
    x = 1,935,965.31

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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.