Finding the Fourth Proportional to 1,237,771.80, 1,708,128.72 and 686,526.84
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Solution
The fourth proportional to 1,237,771.80, 1,708,128.72 and 686,526.84 is: 947,409.06
Step by Step Solution
- Step 1: Write the proportion equation
1,237,771.80 : 1,708,128.72 = 686,526.84 : x - Step 2: Convert to fraction form
1,237,771.80/1,708,128.72 = 686,526.84/x - Step 3: Cross multiply
1,237,771.80x = 1,708,128.72 × 686,526.84 - Step 4: Simplify right side
1,237,771.80x = 1,172,676,212,454.84 - Step 5: Solve for x
x = 1,172,676,212,454.84/1,237,771.80 - Step 6: Final answer
x = 947,409.06
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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.