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Finding the Fourth Proportional to 3,059.85, 4,588.61 and 979.41

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Solution

The fourth proportional to 3,059.85, 4,588.61 and 979.41 is: 1,468.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,059.85 : 4,588.61 = 979.41 : x
  2. Step 2: Convert to fraction form
    3,059.85/4,588.61 = 979.41/x
  3. Step 3: Cross multiply
    3,059.85x = 4,588.61 × 979.41
  4. Step 4: Simplify right side
    3,059.85x = 4,494,125.62
  5. Step 5: Solve for x
    x = 4,494,125.62/3,059.85
  6. Step 6: Final answer
    x = 1,468.74

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1.5x scale

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.