Finding the Fourth Proportional to 1,399,690.11, 1,931,887.37 and 915,974.99
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Solution
The fourth proportional to 1,399,690.11, 1,931,887.37 and 915,974.99 is: 1,264,251.64
Step by Step Solution
- Step 1: Write the proportion equation
1,399,690.11 : 1,931,887.37 = 915,974.99 : x - Step 2: Convert to fraction form
1,399,690.11/1,931,887.37 = 915,974.99/x - Step 3: Cross multiply
1,399,690.11x = 1,931,887.37 × 915,974.99 - Step 4: Simplify right side
1,399,690.11x = 1,769,560,514,416.88 - Step 5: Solve for x
x = 1,769,560,514,416.88/1,399,690.11 - Step 6: Final answer
x = 1,264,251.64
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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.