Finding the Fourth Proportional to 1,170,863,274.15, 1,615,793,939.46 and 675,825,588.99
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Solution
The fourth proportional to 1,170,863,274.15, 1,615,793,939.46 and 675,825,588.99 is: 932,640,825.73
Step by Step Solution
- Step 1: Write the proportion equation
1,170,863,274.15 : 1,615,793,939.46 = 675,825,588.99 : x - Step 2: Convert to fraction form
1,170,863,274.15/1,615,793,939.46 = 675,825,588.99/x - Step 3: Cross multiply
1,170,863,274.15x = 1,615,793,939.46 × 675,825,588.99 - Step 4: Simplify right side
1,170,863,274.15x = 1,091,994,890,822,026,880 - Step 5: Solve for x
x = 1,091,994,890,822,026,880/1,170,863,274.15 - Step 6: Final answer
x = 932,640,825.73
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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.