Finding the Fourth Proportional to 1,247,269.06, 1,720,612.49 and 805,591.76
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Solution
The fourth proportional to 1,247,269.06, 1,720,612.49 and 805,591.76 is: 1,111,316.95
Step by Step Solution
- Step 1: Write the proportion equation
1,247,269.06 : 1,720,612.49 = 805,591.76 : x - Step 2: Convert to fraction form
1,247,269.06/1,720,612.49 = 805,591.76/x - Step 3: Cross multiply
1,247,269.06x = 1,720,612.49 × 805,591.76 - Step 4: Simplify right side
1,247,269.06x = 1,386,111,244,370.65 - Step 5: Solve for x
x = 1,386,111,244,370.65/1,247,269.06 - Step 6: Final answer
x = 1,111,316.95
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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.