Finding the Fourth Proportional to 1,026,815.14, 1,416,399.24 and 644,177.62
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Solution
The fourth proportional to 1,026,815.14, 1,416,399.24 and 644,177.62 is: 888,585.16
Step by Step Solution
- Step 1: Write the proportion equation
1,026,815.14 : 1,416,399.24 = 644,177.62 : x - Step 2: Convert to fraction form
1,026,815.14/1,416,399.24 = 644,177.62/x - Step 3: Cross multiply
1,026,815.14x = 1,416,399.24 × 644,177.62 - Step 4: Simplify right side
1,026,815.14x = 912,412,691,393.01 - Step 5: Solve for x
x = 912,412,691,393.01/1,026,815.14 - Step 6: Final answer
x = 888,585.16
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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.