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Finding the Fourth Proportional to 955.96, 1,436 and 900.48

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Solution

The fourth proportional to 955.96, 1,436 and 900.48 is: 1,352.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.96 : 1,436 = 900.48 : x
  2. Step 2: Convert to fraction form
    955.96/1,436 = 900.48/x
  3. Step 3: Cross multiply
    955.96x = 1,436 × 900.48
  4. Step 4: Simplify right side
    955.96x = 1,293,089.28
  5. Step 5: Solve for x
    x = 1,293,089.28/955.96
  6. Step 6: Final answer
    x = 1,352.66

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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.