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Finding the Fourth Proportional to 992.96, 1,486.36 and 733.25

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Solution

The fourth proportional to 992.96, 1,486.36 and 733.25 is: 1,097.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    992.96 : 1,486.36 = 733.25 : x
  2. Step 2: Convert to fraction form
    992.96/1,486.36 = 733.25/x
  3. Step 3: Cross multiply
    992.96x = 1,486.36 × 733.25
  4. Step 4: Simplify right side
    992.96x = 1,089,869.80
  5. Step 5: Solve for x
    x = 1,089,869.80/992.96
  6. Step 6: Final answer
    x = 1,097.60

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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.