Finding the Fourth Proportional to 824,899,028.58, 1,141,358,310.84 and 719,272,551.06
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Solution
The fourth proportional to 824,899,028.58, 1,141,358,310.84 and 719,272,551.06 is: 995,209,929.30
Step by Step Solution
- Step 1: Write the proportion equation
824,899,028.58 : 1,141,358,310.84 = 719,272,551.06 : x - Step 2: Convert to fraction form
824,899,028.58/1,141,358,310.84 = 719,272,551.06/x - Step 3: Cross multiply
824,899,028.58x = 1,141,358,310.84 × 719,272,551.06 - Step 4: Simplify right side
824,899,028.58x = 820,947,703,911,419,136 - Step 5: Solve for x
x = 820,947,703,911,419,136/824,899,028.58 - Step 6: Final answer
x = 995,209,929.30
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Double scale
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1.5x scale
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.