Finding the Fourth Proportional to 1,068,110.72, 1,602,428.16 and 320,156
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Solution
The fourth proportional to 1,068,110.72, 1,602,428.16 and 320,156 is: 480,312.56
Step by Step Solution
- Step 1: Write the proportion equation
1,068,110.72 : 1,602,428.16 = 320,156 : x - Step 2: Convert to fraction form
1,068,110.72/1,602,428.16 = 320,156/x - Step 3: Cross multiply
1,068,110.72x = 1,602,428.16 × 320,156 - Step 4: Simplify right side
1,068,110.72x = 513,026,989,992.96 - Step 5: Solve for x
x = 513,026,989,992.96/1,068,110.72 - Step 6: Final answer
x = 480,312.56
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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.