Finding the Fourth Proportional to 649,029,986.10, 973,544,979.15 and 188,983,163.70
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Solution
The fourth proportional to 649,029,986.10, 973,544,979.15 and 188,983,163.70 is: 283,474,745.55
Step by Step Solution
- Step 1: Write the proportion equation
649,029,986.10 : 973,544,979.15 = 188,983,163.70 : x - Step 2: Convert to fraction form
649,029,986.10/973,544,979.15 = 188,983,163.70/x - Step 3: Cross multiply
649,029,986.10x = 973,544,979.15 × 188,983,163.70 - Step 4: Simplify right side
649,029,986.10x = 183,983,610,164,017,536 - Step 5: Solve for x
x = 183,983,610,164,017,536/649,029,986.10 - Step 6: Final answer
x = 283,474,745.55
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.