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Finding the Fourth Proportional to 1,476.27, 2,213.16 and 695.82

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Solution

The fourth proportional to 1,476.27, 2,213.16 and 695.82 is: 1,043.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.27 : 2,213.16 = 695.82 : x
  2. Step 2: Convert to fraction form
    1,476.27/2,213.16 = 695.82/x
  3. Step 3: Cross multiply
    1,476.27x = 2,213.16 × 695.82
  4. Step 4: Simplify right side
    1,476.27x = 1,539,960.99
  5. Step 5: Solve for x
    x = 1,539,960.99/1,476.27
  6. Step 6: Final answer
    x = 1,043.14

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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.