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Finding the Fourth Proportional to 3,167.34, 4,751.01 and 858.84

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Solution

The fourth proportional to 3,167.34, 4,751.01 and 858.84 is: 1,288.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.34 : 4,751.01 = 858.84 : x
  2. Step 2: Convert to fraction form
    3,167.34/4,751.01 = 858.84/x
  3. Step 3: Cross multiply
    3,167.34x = 4,751.01 × 858.84
  4. Step 4: Simplify right side
    3,167.34x = 4,080,357.43
  5. Step 5: Solve for x
    x = 4,080,357.43/3,167.34
  6. Step 6: Final answer
    x = 1,288.26

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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.