Finding the Fourth Proportional to 1,233,716,369.49, 1,702,518,513.08 and 669,199,838.00
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Solution
The fourth proportional to 1,233,716,369.49, 1,702,518,513.08 and 669,199,838.00 is: 923,490,310.50
Step by Step Solution
- Step 1: Write the proportion equation
1,233,716,369.49 : 1,702,518,513.08 = 669,199,838.00 : x - Step 2: Convert to fraction form
1,233,716,369.49/1,702,518,513.08 = 669,199,838.00/x - Step 3: Cross multiply
1,233,716,369.49x = 1,702,518,513.08 × 669,199,838.00 - Step 4: Simplify right side
1,233,716,369.49x = 1,139,325,113,133,278,336 - Step 5: Solve for x
x = 1,139,325,113,133,278,336/1,233,716,369.49 - Step 6: Final answer
x = 923,490,310.50
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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.