Finding the Fourth Proportional to 1,209,036.88, 1,668,470.83 and 665,160.99
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Solution
The fourth proportional to 1,209,036.88, 1,668,470.83 and 665,160.99 is: 917,922.13
Step by Step Solution
- Step 1: Write the proportion equation
1,209,036.88 : 1,668,470.83 = 665,160.99 : x - Step 2: Convert to fraction form
1,209,036.88/1,668,470.83 = 665,160.99/x - Step 3: Cross multiply
1,209,036.88x = 1,668,470.83 × 665,160.99 - Step 4: Simplify right side
1,209,036.88x = 1,109,801,709,068.92 - Step 5: Solve for x
x = 1,109,801,709,068.92/1,209,036.88 - Step 6: Final answer
x = 917,922.13
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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.