Finding the Fourth Proportional to 1,046,639.13, 1,444,587.12 and 638,653.62
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Solution
The fourth proportional to 1,046,639.13, 1,444,587.12 and 638,653.62 is: 881,479.36
Step by Step Solution
- Step 1: Write the proportion equation
1,046,639.13 : 1,444,587.12 = 638,653.62 : x - Step 2: Convert to fraction form
1,046,639.13/1,444,587.12 = 638,653.62/x - Step 3: Cross multiply
1,046,639.13x = 1,444,587.12 × 638,653.62 - Step 4: Simplify right side
1,046,639.13x = 922,590,793,593.38 - Step 5: Solve for x
x = 922,590,793,593.38/1,046,639.13 - Step 6: Final answer
x = 881,479.36
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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.