Finding the Fourth Proportional to 1,192,973,672.16, 1,645,455,623.64 and 796,296,661.92
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Solution
The fourth proportional to 1,192,973,672.16, 1,645,455,623.64 and 796,296,661.92 is: 1,098,323,333.55
Step by Step Solution
- Step 1: Write the proportion equation
1,192,973,672.16 : 1,645,455,623.64 = 796,296,661.92 : x - Step 2: Convert to fraction form
1,192,973,672.16/1,645,455,623.64 = 796,296,661.92/x - Step 3: Cross multiply
1,192,973,672.16x = 1,645,455,623.64 × 796,296,661.92 - Step 4: Simplify right side
1,192,973,672.16x = 1,310,270,820,442,023,936 - Step 5: Solve for x
x = 1,310,270,820,442,023,936/1,192,973,672.16 - Step 6: Final answer
x = 1,098,323,333.55
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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.