Finding the Fourth Proportional to 1,213,464,220.48, 1,674,104,163.37 and 704,740,333.74
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Solution
The fourth proportional to 1,213,464,220.48, 1,674,104,163.37 and 704,740,333.74 is: 972,264,947.66
Step by Step Solution
- Step 1: Write the proportion equation
1,213,464,220.48 : 1,674,104,163.37 = 704,740,333.74 : x - Step 2: Convert to fraction form
1,213,464,220.48/1,674,104,163.37 = 704,740,333.74/x - Step 3: Cross multiply
1,213,464,220.48x = 1,674,104,163.37 × 704,740,333.74 - Step 4: Simplify right side
1,213,464,220.48x = 1,179,808,726,807,135,488 - Step 5: Solve for x
x = 1,179,808,726,807,135,488/1,213,464,220.48 - Step 6: Final answer
x = 972,264,947.66
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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.