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Finding the Fourth Proportional to 1,505.74, 2,079.17 and 1,033.46

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Solution

The fourth proportional to 1,505.74, 2,079.17 and 1,033.46 is: 1,427.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505.74 : 2,079.17 = 1,033.46 : x
  2. Step 2: Convert to fraction form
    1,505.74/2,079.17 = 1,033.46/x
  3. Step 3: Cross multiply
    1,505.74x = 2,079.17 × 1,033.46
  4. Step 4: Simplify right side
    1,505.74x = 2,148,735.14
  5. Step 5: Solve for x
    x = 2,148,735.14/1,505.74
  6. Step 6: Final answer
    x = 1,427.03

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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.