Finding the Fourth Proportional to 1,044,132,577.38, 1,440,874,202.90 and 574,234,069.05
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Solution
The fourth proportional to 1,044,132,577.38, 1,440,874,202.90 and 574,234,069.05 is: 792,427,201.72
Step by Step Solution
- Step 1: Write the proportion equation
1,044,132,577.38 : 1,440,874,202.90 = 574,234,069.05 : x - Step 2: Convert to fraction form
1,044,132,577.38/1,440,874,202.90 = 574,234,069.05/x - Step 3: Cross multiply
1,044,132,577.38x = 1,440,874,202.90 × 574,234,069.05 - Step 4: Simplify right side
1,044,132,577.38x = 827,399,056,517,571,072 - Step 5: Solve for x
x = 827,399,056,517,571,072/1,044,132,577.38 - Step 6: Final answer
x = 792,427,201.72
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Double scale
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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.