Finding the Fourth Proportional to 1,016,805.85, 1,403,145.10 and 557,908.99
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Solution
The fourth proportional to 1,016,805.85, 1,403,145.10 and 557,908.99 is: 769,888.63
Step by Step Solution
- Step 1: Write the proportion equation
1,016,805.85 : 1,403,145.10 = 557,908.99 : x - Step 2: Convert to fraction form
1,016,805.85/1,403,145.10 = 557,908.99/x - Step 3: Cross multiply
1,016,805.85x = 1,403,145.10 × 557,908.99 - Step 4: Simplify right side
1,016,805.85x = 782,827,265,564.45 - Step 5: Solve for x
x = 782,827,265,564.45/1,016,805.85 - Step 6: Final answer
x = 769,888.63
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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.