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Finding the Fourth Proportional to 933.44, 1,399.68 and 501.12

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Solution

The fourth proportional to 933.44, 1,399.68 and 501.12 is: 751.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.44 : 1,399.68 = 501.12 : x
  2. Step 2: Convert to fraction form
    933.44/1,399.68 = 501.12/x
  3. Step 3: Cross multiply
    933.44x = 1,399.68 × 501.12
  4. Step 4: Simplify right side
    933.44x = 701,407.64
  5. Step 5: Solve for x
    x = 701,407.64/933.44
  6. Step 6: Final answer
    x = 751.42

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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.