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Finding the Fourth Proportional to 2,696.40, 4,043.13 and 940.93

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Solution

The fourth proportional to 2,696.40, 4,043.13 and 940.93 is: 1,410.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,696.40 : 4,043.13 = 940.93 : x
  2. Step 2: Convert to fraction form
    2,696.40/4,043.13 = 940.93/x
  3. Step 3: Cross multiply
    2,696.40x = 4,043.13 × 940.93
  4. Step 4: Simplify right side
    2,696.40x = 3,804,307.36
  5. Step 5: Solve for x
    x = 3,804,307.36/2,696.40
  6. Step 6: Final answer
    x = 1,410.88

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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.