Finding the Fourth Proportional to 1,170,893.79, 1,615,812.44 and 661,585.23
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Solution
The fourth proportional to 1,170,893.79, 1,615,812.44 and 661,585.23 is: 912,975.75
Step by Step Solution
- Step 1: Write the proportion equation
1,170,893.79 : 1,615,812.44 = 661,585.23 : x - Step 2: Convert to fraction form
1,170,893.79/1,615,812.44 = 661,585.23/x - Step 3: Cross multiply
1,170,893.79x = 1,615,812.44 × 661,585.23 - Step 4: Simplify right side
1,170,893.79x = 1,068,997,641,446.34 - Step 5: Solve for x
x = 1,068,997,641,446.34/1,170,893.79 - Step 6: Final answer
x = 912,975.75
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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.