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Finding the Fourth Proportional to 1,087.94, 1,499.01 and 738.02

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Solution

The fourth proportional to 1,087.94, 1,499.01 and 738.02 is: 1,016.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087.94 : 1,499.01 = 738.02 : x
  2. Step 2: Convert to fraction form
    1,087.94/1,499.01 = 738.02/x
  3. Step 3: Cross multiply
    1,087.94x = 1,499.01 × 738.02
  4. Step 4: Simplify right side
    1,087.94x = 1,106,299.36
  5. Step 5: Solve for x
    x = 1,106,299.36/1,087.94
  6. Step 6: Final answer
    x = 1,016.88

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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.