Finding the Fourth Proportional to 2,213,354,612.70, 3,320,031,919.05 and 577,579,214.70
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Solution
The fourth proportional to 2,213,354,612.70, 3,320,031,919.05 and 577,579,214.70 is: 866,368,822.05
Step by Step Solution
- Step 1: Write the proportion equation
2,213,354,612.70 : 3,320,031,919.05 = 577,579,214.70 : x - Step 2: Convert to fraction form
2,213,354,612.70/3,320,031,919.05 = 577,579,214.70/x - Step 3: Cross multiply
2,213,354,612.70x = 3,320,031,919.05 × 577,579,214.70 - Step 4: Simplify right side
2,213,354,612.70x = 1,917,581,428,583,833,344 - Step 5: Solve for x
x = 1,917,581,428,583,833,344/2,213,354,612.70 - Step 6: Final answer
x = 866,368,822.05
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Double scale
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Similar ratio
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1.5x scale
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.