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Finding the Fourth Proportional to 3,053.84, 4,579.13 and 1,078.79

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Solution

The fourth proportional to 3,053.84, 4,579.13 and 1,078.79 is: 1,617.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,053.84 : 4,579.13 = 1,078.79 : x
  2. Step 2: Convert to fraction form
    3,053.84/4,579.13 = 1,078.79/x
  3. Step 3: Cross multiply
    3,053.84x = 4,579.13 × 1,078.79
  4. Step 4: Simplify right side
    3,053.84x = 4,939,899.45
  5. Step 5: Solve for x
    x = 4,939,899.45/3,053.84
  6. Step 6: Final answer
    x = 1,617.61

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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.