Finding the Fourth Proportional to 710.98, 1,059.98 and 693
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Solution
The fourth proportional to 710.98, 1,059.98 and 693 is: 1,033.17
Step by Step Solution
- Step 1: Write the proportion equation
710.98 : 1,059.98 = 693 : x - Step 2: Convert to fraction form
710.98/1,059.98 = 693/x - Step 3: Cross multiply
710.98x = 1,059.98 × 693 - Step 4: Simplify right side
710.98x = 734,566.14 - Step 5: Solve for x
x = 734,566.14/710.98 - Step 6: Final answer
x = 1,033.17
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.