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Finding the Fourth Proportional to 3,477.93, 5,216.85 and 845.46

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Solution

The fourth proportional to 3,477.93, 5,216.85 and 845.46 is: 1,268.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.93 : 5,216.85 = 845.46 : x
  2. Step 2: Convert to fraction form
    3,477.93/5,216.85 = 845.46/x
  3. Step 3: Cross multiply
    3,477.93x = 5,216.85 × 845.46
  4. Step 4: Simplify right side
    3,477.93x = 4,410,638.00
  5. Step 5: Solve for x
    x = 4,410,638.00/3,477.93
  6. Step 6: Final answer
    x = 1,268.18

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1.5x scale

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.