Finding the Fourth Proportional to 1,221,054.01, 1,685,155.44 and 677,365.09
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Solution
The fourth proportional to 1,221,054.01, 1,685,155.44 and 677,365.09 is: 934,819.80
Step by Step Solution
- Step 1: Write the proportion equation
1,221,054.01 : 1,685,155.44 = 677,365.09 : x - Step 2: Convert to fraction form
1,221,054.01/1,685,155.44 = 677,365.09/x - Step 3: Cross multiply
1,221,054.01x = 1,685,155.44 × 677,365.09 - Step 4: Simplify right side
1,221,054.01x = 1,141,465,466,279.59 - Step 5: Solve for x
x = 1,141,465,466,279.59/1,221,054.01 - Step 6: Final answer
x = 934,819.80
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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.