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Finding the Fourth Proportional to 1,992,692.94, 2,749,976.91 and 1,133,376.90

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Solution

The fourth proportional to 1,992,692.94, 2,749,976.91 and 1,133,376.90 is: 1,564,094.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,692.94 : 2,749,976.91 = 1,133,376.90 : x
  2. Step 2: Convert to fraction form
    1,992,692.94/2,749,976.91 = 1,133,376.90/x
  3. Step 3: Cross multiply
    1,992,692.94x = 2,749,976.91 × 1,133,376.90
  4. Step 4: Simplify right side
    1,992,692.94x = 3,116,760,305,327.38
  5. Step 5: Solve for x
    x = 3,116,760,305,327.38/1,992,692.94
  6. Step 6: Final answer
    x = 1,564,094.62

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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.