Finding the Fourth Proportional to 1,316,545.06, 1,816,821.78 and 712,933.06
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Solution
The fourth proportional to 1,316,545.06, 1,816,821.78 and 712,933.06 is: 983,841.99
Step by Step Solution
- Step 1: Write the proportion equation
1,316,545.06 : 1,816,821.78 = 712,933.06 : x - Step 2: Convert to fraction form
1,316,545.06/1,816,821.78 = 712,933.06/x - Step 3: Cross multiply
1,316,545.06x = 1,816,821.78 × 712,933.06 - Step 4: Simplify right side
1,316,545.06x = 1,295,272,311,090.05 - Step 5: Solve for x
x = 1,295,272,311,090.05/1,316,545.06 - Step 6: Final answer
x = 983,841.99
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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.