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Finding the Fourth Proportional to 995.85, 1,374.44 and 603.07

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Solution

The fourth proportional to 995.85, 1,374.44 and 603.07 is: 832.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.85 : 1,374.44 = 603.07 : x
  2. Step 2: Convert to fraction form
    995.85/1,374.44 = 603.07/x
  3. Step 3: Cross multiply
    995.85x = 1,374.44 × 603.07
  4. Step 4: Simplify right side
    995.85x = 828,877.08
  5. Step 5: Solve for x
    x = 828,877.08/995.85
  6. Step 6: Final answer
    x = 832.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.