Finding the Fourth Proportional to 942.63, 1,300.82 and 549.71
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Solution
The fourth proportional to 942.63, 1,300.82 and 549.71 is: 758.59
Step by Step Solution
- Step 1: Write the proportion equation
942.63 : 1,300.82 = 549.71 : x - Step 2: Convert to fraction form
942.63/1,300.82 = 549.71/x - Step 3: Cross multiply
942.63x = 1,300.82 × 549.71 - Step 4: Simplify right side
942.63x = 715,073.76 - Step 5: Solve for x
x = 715,073.76/942.63 - Step 6: Final answer
x = 758.59
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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.