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Finding the Fourth Proportional to 1,052.84, 1,453.14 and 758.60

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Solution

The fourth proportional to 1,052.84, 1,453.14 and 758.60 is: 1,047.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052.84 : 1,453.14 = 758.60 : x
  2. Step 2: Convert to fraction form
    1,052.84/1,453.14 = 758.60/x
  3. Step 3: Cross multiply
    1,052.84x = 1,453.14 × 758.60
  4. Step 4: Simplify right side
    1,052.84x = 1,102,352.00
  5. Step 5: Solve for x
    x = 1,102,352.00/1,052.84
  6. Step 6: Final answer
    x = 1,047.03

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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.