Finding the Fourth Proportional to 1,186,254.81, 1,637,032.51 and 642,391.19
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Solution
The fourth proportional to 1,186,254.81, 1,637,032.51 and 642,391.19 is: 886,500.32
Step by Step Solution
- Step 1: Write the proportion equation
1,186,254.81 : 1,637,032.51 = 642,391.19 : x - Step 2: Convert to fraction form
1,186,254.81/1,637,032.51 = 642,391.19/x - Step 3: Cross multiply
1,186,254.81x = 1,637,032.51 × 642,391.19 - Step 4: Simplify right side
1,186,254.81x = 1,051,615,260,561.61 - Step 5: Solve for x
x = 1,051,615,260,561.61/1,186,254.81 - Step 6: Final answer
x = 886,500.32
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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.