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Finding the Fourth Proportional to 732, 1,096.36 and 406.64

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Solution

The fourth proportional to 732, 1,096.36 and 406.64 is: 609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    732 : 1,096.36 = 406.64 : x
  2. Step 2: Convert to fraction form
    732/1,096.36 = 406.64/x
  3. Step 3: Cross multiply
    732x = 1,096.36 × 406.64
  4. Step 4: Simplify right side
    732x = 445,823.83
  5. Step 5: Solve for x
    x = 445,823.83/732
  6. Step 6: Final answer
    x = 609.05

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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.