Finding the Fourth Proportional to 934,675,516.26, 1,289,882,977.65 and 511,279,488.33
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Solution
The fourth proportional to 934,675,516.26, 1,289,882,977.65 and 511,279,488.33 is: 705,582,522.85
Step by Step Solution
- Step 1: Write the proportion equation
934,675,516.26 : 1,289,882,977.65 = 511,279,488.33 : x - Step 2: Convert to fraction form
934,675,516.26/1,289,882,977.65 = 511,279,488.33/x - Step 3: Cross multiply
934,675,516.26x = 1,289,882,977.65 × 511,279,488.33 - Step 4: Simplify right side
934,675,516.26x = 659,490,708,809,463,040 - Step 5: Solve for x
x = 659,490,708,809,463,040/934,675,516.26 - Step 6: Final answer
x = 705,582,522.85
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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.