Finding the Fourth Proportional to 1,291,752.18, 1,935,856.80 and 817,591.14
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Solution
The fourth proportional to 1,291,752.18, 1,935,856.80 and 817,591.14 is: 1,225,265.49
Step by Step Solution
- Step 1: Write the proportion equation
1,291,752.18 : 1,935,856.80 = 817,591.14 : x - Step 2: Convert to fraction form
1,291,752.18/1,935,856.80 = 817,591.14/x - Step 3: Cross multiply
1,291,752.18x = 1,935,856.80 × 817,591.14 - Step 4: Simplify right side
1,291,752.18x = 1,582,739,367,988.75 - Step 5: Solve for x
x = 1,582,739,367,988.75/1,291,752.18 - Step 6: Final answer
x = 1,225,265.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.