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Finding the Fourth Proportional to 736.72, 1,016.64 and 442.04

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Solution

The fourth proportional to 736.72, 1,016.64 and 442.04 is: 610.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    736.72 : 1,016.64 = 442.04 : x
  2. Step 2: Convert to fraction form
    736.72/1,016.64 = 442.04/x
  3. Step 3: Cross multiply
    736.72x = 1,016.64 × 442.04
  4. Step 4: Simplify right side
    736.72x = 449,395.55
  5. Step 5: Solve for x
    x = 449,395.55/736.72
  6. Step 6: Final answer
    x = 610.00

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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.