Finding the Fourth Proportional to 1,517,781.12, 2,094,538.68 and 838,717.62
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Solution
The fourth proportional to 1,517,781.12, 2,094,538.68 and 838,717.62 is: 1,157,430.72
Step by Step Solution
- Step 1: Write the proportion equation
1,517,781.12 : 2,094,538.68 = 838,717.62 : x - Step 2: Convert to fraction form
1,517,781.12/2,094,538.68 = 838,717.62/x - Step 3: Cross multiply
1,517,781.12x = 2,094,538.68 × 838,717.62 - Step 4: Simplify right side
1,517,781.12x = 1,756,726,496,687.54 - Step 5: Solve for x
x = 1,756,726,496,687.54/1,517,781.12 - Step 6: Final answer
x = 1,157,430.72
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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.