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Finding the Fourth Proportional to 1,582,936.72, 2,184,454.50 and 857,778.10

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Solution

The fourth proportional to 1,582,936.72, 2,184,454.50 and 857,778.10 is: 1,183,734.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,582,936.72 : 2,184,454.50 = 857,778.10 : x
  2. Step 2: Convert to fraction form
    1,582,936.72/2,184,454.50 = 857,778.10/x
  3. Step 3: Cross multiply
    1,582,936.72x = 2,184,454.50 × 857,778.10
  4. Step 4: Simplify right side
    1,582,936.72x = 1,873,777,230,546.45
  5. Step 5: Solve for x
    x = 1,873,777,230,546.45/1,582,936.72
  6. Step 6: Final answer
    x = 1,183,734.77

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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.