Finding the Fourth Proportional to 1,257,819.09, 1,735,811.40 and 713,971.65
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Solution
The fourth proportional to 1,257,819.09, 1,735,811.40 and 713,971.65 is: 985,292.83
Step by Step Solution
- Step 1: Write the proportion equation
1,257,819.09 : 1,735,811.40 = 713,971.65 : x - Step 2: Convert to fraction form
1,257,819.09/1,735,811.40 = 713,971.65/x - Step 3: Cross multiply
1,257,819.09x = 1,735,811.40 × 713,971.65 - Step 4: Simplify right side
1,257,819.09x = 1,239,320,129,346.81 - Step 5: Solve for x
x = 1,239,320,129,346.81/1,257,819.09 - Step 6: Final answer
x = 985,292.83
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1.5x scale
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.