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Finding the Fourth Proportional to 996.16, 1,492.08 and 670.54

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Solution

The fourth proportional to 996.16, 1,492.08 and 670.54 is: 1,004.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.16 : 1,492.08 = 670.54 : x
  2. Step 2: Convert to fraction form
    996.16/1,492.08 = 670.54/x
  3. Step 3: Cross multiply
    996.16x = 1,492.08 × 670.54
  4. Step 4: Simplify right side
    996.16x = 1,000,499.32
  5. Step 5: Solve for x
    x = 1,000,499.32/996.16
  6. Step 6: Final answer
    x = 1,004.36

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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.