Finding the Fourth Proportional to 941,990,196.62, 1,299,922,712.14 and 518,599,630.99
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Solution
The fourth proportional to 941,990,196.62, 1,299,922,712.14 and 518,599,630.99 is: 715,654,410.47
Step by Step Solution
- Step 1: Write the proportion equation
941,990,196.62 : 1,299,922,712.14 = 518,599,630.99 : x - Step 2: Convert to fraction form
941,990,196.62/1,299,922,712.14 = 518,599,630.99/x - Step 3: Cross multiply
941,990,196.62x = 1,299,922,712.14 × 518,599,630.99 - Step 4: Simplify right side
941,990,196.62x = 674,139,438,825,866,112 - Step 5: Solve for x
x = 674,139,438,825,866,112/941,990,196.62 - Step 6: Final answer
x = 715,654,410.47
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Double scale
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Similar ratio
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1.5x scale
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.