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Finding the Fourth Proportional to 2,340.22, 3,507.63 and 878.44

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Solution

The fourth proportional to 2,340.22, 3,507.63 and 878.44 is: 1,316.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.22 : 3,507.63 = 878.44 : x
  2. Step 2: Convert to fraction form
    2,340.22/3,507.63 = 878.44/x
  3. Step 3: Cross multiply
    2,340.22x = 3,507.63 × 878.44
  4. Step 4: Simplify right side
    2,340.22x = 3,081,242.50
  5. Step 5: Solve for x
    x = 3,081,242.50/2,340.22
  6. Step 6: Final answer
    x = 1,316.65

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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.