Finding the Fourth Proportional to 1,052,090,668.08, 1,452,090,483 and 634,470,945.84
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Solution
The fourth proportional to 1,052,090,668.08, 1,452,090,483 and 634,470,945.84 is: 875,693,749.74
Step by Step Solution
- Step 1: Write the proportion equation
1,052,090,668.08 : 1,452,090,483 = 634,470,945.84 : x - Step 2: Convert to fraction form
1,052,090,668.08/1,452,090,483 = 634,470,945.84/x - Step 3: Cross multiply
1,052,090,668.08x = 1,452,090,483 × 634,470,945.84 - Step 4: Simplify right side
1,052,090,668.08x = 921,309,222,194,272,512 - Step 5: Solve for x
x = 921,309,222,194,272,512/1,052,090,668.08 - Step 6: Final answer
x = 875,693,749.74
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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.