Finding the Fourth Proportional to 959,096,812.70, 1,438,645,219.05 and 959,096,812.70
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Solution
The fourth proportional to 959,096,812.70, 1,438,645,219.05 and 959,096,812.70 is: 1,438,645,219.05
Step by Step Solution
- Step 1: Write the proportion equation
959,096,812.70 : 1,438,645,219.05 = 959,096,812.70 : x - Step 2: Convert to fraction form
959,096,812.70/1,438,645,219.05 = 959,096,812.70/x - Step 3: Cross multiply
959,096,812.70x = 1,438,645,219.05 × 959,096,812.70 - Step 4: Simplify right side
959,096,812.70x = 1,379,800,044,196,948,224 - Step 5: Solve for x
x = 1,379,800,044,196,948,224/959,096,812.70 - Step 6: Final answer
x = 1,438,645,219.05
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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.