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Finding the Fourth Proportional to 455,616.63, 628,757.00 and 251,667.03

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Solution

The fourth proportional to 455,616.63, 628,757.00 and 251,667.03 is: 347,303.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,616.63 : 628,757.00 = 251,667.03 : x
  2. Step 2: Convert to fraction form
    455,616.63/628,757.00 = 251,667.03/x
  3. Step 3: Cross multiply
    455,616.63x = 628,757.00 × 251,667.03
  4. Step 4: Simplify right side
    455,616.63x = 158,237,408,824.97
  5. Step 5: Solve for x
    x = 158,237,408,824.97/455,616.63
  6. Step 6: Final answer
    x = 347,303.85

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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.