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Finding the Fourth Proportional to 3,303.56, 4,955.60 and 963.60

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Solution

The fourth proportional to 3,303.56, 4,955.60 and 963.60 is: 1,445.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,303.56 : 4,955.60 = 963.60 : x
  2. Step 2: Convert to fraction form
    3,303.56/4,955.60 = 963.60/x
  3. Step 3: Cross multiply
    3,303.56x = 4,955.60 × 963.60
  4. Step 4: Simplify right side
    3,303.56x = 4,775,216.16
  5. Step 5: Solve for x
    x = 4,775,216.16/3,303.56
  6. Step 6: Final answer
    x = 1,445.48

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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.