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Finding the Fourth Proportional to 955.44, 1,433.34 and 631.08

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Solution

The fourth proportional to 955.44, 1,433.34 and 631.08 is: 946.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.44 : 1,433.34 = 631.08 : x
  2. Step 2: Convert to fraction form
    955.44/1,433.34 = 631.08/x
  3. Step 3: Cross multiply
    955.44x = 1,433.34 × 631.08
  4. Step 4: Simplify right side
    955.44x = 904,552.21
  5. Step 5: Solve for x
    x = 904,552.21/955.44
  6. Step 6: Final answer
    x = 946.74

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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.