Finding the Fourth Proportional to 788,964,090.48, 1,089,208,306.08 and 475,777,642.32
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Solution
The fourth proportional to 788,964,090.48, 1,089,208,306.08 and 475,777,642.32 is: 656,837,194.64
Step by Step Solution
- Step 1: Write the proportion equation
788,964,090.48 : 1,089,208,306.08 = 475,777,642.32 : x - Step 2: Convert to fraction form
788,964,090.48/1,089,208,306.08 = 475,777,642.32/x - Step 3: Cross multiply
788,964,090.48x = 1,089,208,306.08 × 475,777,642.32 - Step 4: Simplify right side
788,964,090.48x = 518,220,959,862,103,296 - Step 5: Solve for x
x = 518,220,959,862,103,296/788,964,090.48 - Step 6: Final answer
x = 656,837,194.64
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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.