Finding the Fourth Proportional to 881,763.09, 1,216,945.62 and 519,220.68
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Solution
The fourth proportional to 881,763.09, 1,216,945.62 and 519,220.68 is: 716,590.82
Step by Step Solution
- Step 1: Write the proportion equation
881,763.09 : 1,216,945.62 = 519,220.68 : x - Step 2: Convert to fraction form
881,763.09/1,216,945.62 = 519,220.68/x - Step 3: Cross multiply
881,763.09x = 1,216,945.62 × 519,220.68 - Step 4: Simplify right side
881,763.09x = 631,863,332,339.42 - Step 5: Solve for x
x = 631,863,332,339.42/881,763.09 - Step 6: Final answer
x = 716,590.82
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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.