Finding the Fourth Proportional to 1,115,556.36, 1,539,479.78 and 606,258.84
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Solution
The fourth proportional to 1,115,556.36, 1,539,479.78 and 606,258.84 is: 836,643.72
Step by Step Solution
- Step 1: Write the proportion equation
1,115,556.36 : 1,539,479.78 = 606,258.84 : x - Step 2: Convert to fraction form
1,115,556.36/1,539,479.78 = 606,258.84/x - Step 3: Cross multiply
1,115,556.36x = 1,539,479.78 × 606,258.84 - Step 4: Simplify right side
1,115,556.36x = 933,323,225,626.26 - Step 5: Solve for x
x = 933,323,225,626.26/1,115,556.36 - Step 6: Final answer
x = 836,643.72
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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.