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Finding the Fourth Proportional to 995.08, 1,490.57 and 582.97

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Solution

The fourth proportional to 995.08, 1,490.57 and 582.97 is: 873.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.08 : 1,490.57 = 582.97 : x
  2. Step 2: Convert to fraction form
    995.08/1,490.57 = 582.97/x
  3. Step 3: Cross multiply
    995.08x = 1,490.57 × 582.97
  4. Step 4: Simplify right side
    995.08x = 868,953.87
  5. Step 5: Solve for x
    x = 868,953.87/995.08
  6. Step 6: Final answer
    x = 873.25

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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.