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Finding the Fourth Proportional to 2,316.31, 3,474.56 and 854.67

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Solution

The fourth proportional to 2,316.31, 3,474.56 and 854.67 is: 1,282.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,316.31 : 3,474.56 = 854.67 : x
  2. Step 2: Convert to fraction form
    2,316.31/3,474.56 = 854.67/x
  3. Step 3: Cross multiply
    2,316.31x = 3,474.56 × 854.67
  4. Step 4: Simplify right side
    2,316.31x = 2,969,580.55
  5. Step 5: Solve for x
    x = 2,969,580.55/2,316.31
  6. Step 6: Final answer
    x = 1,282.03

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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.