Finding the Fourth Proportional to 1,175,243.26, 1,621,836.39 and 638,699.26
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Solution
The fourth proportional to 1,175,243.26, 1,621,836.39 and 638,699.26 is: 881,405.35
Step by Step Solution
- Step 1: Write the proportion equation
1,175,243.26 : 1,621,836.39 = 638,699.26 : x - Step 2: Convert to fraction form
1,175,243.26/1,621,836.39 = 638,699.26/x - Step 3: Cross multiply
1,175,243.26x = 1,621,836.39 × 638,699.26 - Step 4: Simplify right side
1,175,243.26x = 1,035,865,702,134.07 - Step 5: Solve for x
x = 1,035,865,702,134.07/1,175,243.26 - Step 6: Final answer
x = 881,405.35
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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.