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Finding the Fourth Proportional to 3,176.44, 4,764.51 and 984.88

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Solution

The fourth proportional to 3,176.44, 4,764.51 and 984.88 is: 1,477.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.44 : 4,764.51 = 984.88 : x
  2. Step 2: Convert to fraction form
    3,176.44/4,764.51 = 984.88/x
  3. Step 3: Cross multiply
    3,176.44x = 4,764.51 × 984.88
  4. Step 4: Simplify right side
    3,176.44x = 4,692,470.61
  5. Step 5: Solve for x
    x = 4,692,470.61/3,176.44
  6. Step 6: Final answer
    x = 1,477.27

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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.