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Finding the Fourth Proportional to 487,692.87, 673,026.48 and 294,100.44

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Solution

The fourth proportional to 487,692.87, 673,026.48 and 294,100.44 is: 405,864.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,692.87 : 673,026.48 = 294,100.44 : x
  2. Step 2: Convert to fraction form
    487,692.87/673,026.48 = 294,100.44/x
  3. Step 3: Cross multiply
    487,692.87x = 673,026.48 × 294,100.44
  4. Step 4: Simplify right side
    487,692.87x = 197,937,383,899.65
  5. Step 5: Solve for x
    x = 197,937,383,899.65/487,692.87
  6. Step 6: Final answer
    x = 405,864.83

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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.