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Finding the Fourth Proportional to 1,414.53, 1,952.04 and 785.05

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Solution

The fourth proportional to 1,414.53, 1,952.04 and 785.05 is: 1,083.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,414.53 : 1,952.04 = 785.05 : x
  2. Step 2: Convert to fraction form
    1,414.53/1,952.04 = 785.05/x
  3. Step 3: Cross multiply
    1,414.53x = 1,952.04 × 785.05
  4. Step 4: Simplify right side
    1,414.53x = 1,532,449.00
  5. Step 5: Solve for x
    x = 1,532,449.00/1,414.53
  6. Step 6: Final answer
    x = 1,083.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.