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Finding the Fourth Proportional to 3,332.98, 4,999.47 and 993.02

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Solution

The fourth proportional to 3,332.98, 4,999.47 and 993.02 is: 1,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,332.98 : 4,999.47 = 993.02 : x
  2. Step 2: Convert to fraction form
    3,332.98/4,999.47 = 993.02/x
  3. Step 3: Cross multiply
    3,332.98x = 4,999.47 × 993.02
  4. Step 4: Simplify right side
    3,332.98x = 4,964,573.70
  5. Step 5: Solve for x
    x = 4,964,573.70/3,332.98
  6. Step 6: Final answer
    x = 1,489.53

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Similar ratio
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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.