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Finding the Fourth Proportional to 1,049.14, 1,447.56 and 607

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Solution

The fourth proportional to 1,049.14, 1,447.56 and 607 is: 837.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.14 : 1,447.56 = 607 : x
  2. Step 2: Convert to fraction form
    1,049.14/1,447.56 = 607/x
  3. Step 3: Cross multiply
    1,049.14x = 1,447.56 × 607
  4. Step 4: Simplify right side
    1,049.14x = 878,668.92
  5. Step 5: Solve for x
    x = 878,668.92/1,049.14
  6. Step 6: Final answer
    x = 837.51

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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.