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Finding the Fourth Proportional to 2,970.54, 4,455.33 and 995.88

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Solution

The fourth proportional to 2,970.54, 4,455.33 and 995.88 is: 1,493.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.54 : 4,455.33 = 995.88 : x
  2. Step 2: Convert to fraction form
    2,970.54/4,455.33 = 995.88/x
  3. Step 3: Cross multiply
    2,970.54x = 4,455.33 × 995.88
  4. Step 4: Simplify right side
    2,970.54x = 4,436,974.04
  5. Step 5: Solve for x
    x = 4,436,974.04/2,970.54
  6. Step 6: Final answer
    x = 1,493.66

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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.