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Finding the Fourth Proportional to 2,794.31, 4,191.37 and 714.30

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Solution

The fourth proportional to 2,794.31, 4,191.37 and 714.30 is: 1,071.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,794.31 : 4,191.37 = 714.30 : x
  2. Step 2: Convert to fraction form
    2,794.31/4,191.37 = 714.30/x
  3. Step 3: Cross multiply
    2,794.31x = 4,191.37 × 714.30
  4. Step 4: Simplify right side
    2,794.31x = 2,993,893.81
  5. Step 5: Solve for x
    x = 2,993,893.81/2,794.31
  6. Step 6: Final answer
    x = 1,071.42

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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.