Finding the Fourth Proportional to 1,239,534.93, 1,710,561.49 and 688,251.65
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Solution
The fourth proportional to 1,239,534.93, 1,710,561.49 and 688,251.65 is: 949,789.11
Step by Step Solution
- Step 1: Write the proportion equation
1,239,534.93 : 1,710,561.49 = 688,251.65 : x - Step 2: Convert to fraction form
1,239,534.93/1,710,561.49 = 688,251.65/x - Step 3: Cross multiply
1,239,534.93x = 1,710,561.49 × 688,251.65 - Step 4: Simplify right side
1,239,534.93x = 1,177,296,767,918.96 - Step 5: Solve for x
x = 1,177,296,767,918.96/1,239,534.93 - Step 6: Final answer
x = 949,789.11
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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.