Finding the Fourth Proportional to 1,719,258.40, 2,578,909.20 and 521,192.80
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Solution
The fourth proportional to 1,719,258.40, 2,578,909.20 and 521,192.80 is: 781,795.75
Step by Step Solution
- Step 1: Write the proportion equation
1,719,258.40 : 2,578,909.20 = 521,192.80 : x - Step 2: Convert to fraction form
1,719,258.40/2,578,909.20 = 521,192.80/x - Step 3: Cross multiply
1,719,258.40x = 2,578,909.20 × 521,192.80 - Step 4: Simplify right side
1,719,258.40x = 1,344,108,906,893.76 - Step 5: Solve for x
x = 1,344,108,906,893.76/1,719,258.40 - Step 6: Final answer
x = 781,795.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.