Finding the Fourth Proportional to 886,928,623.32, 1,223,969,419.98 and 490,478,439
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Solution
The fourth proportional to 886,928,623.32, 1,223,969,419.98 and 490,478,439 is: 676,864,625.53
Step by Step Solution
- Step 1: Write the proportion equation
886,928,623.32 : 1,223,969,419.98 = 490,478,439 : x - Step 2: Convert to fraction form
886,928,623.32/1,223,969,419.98 = 490,478,439/x - Step 3: Cross multiply
886,928,623.32x = 1,223,969,419.98 × 490,478,439 - Step 4: Simplify right side
886,928,623.32x = 600,330,610,495,525,760 - Step 5: Solve for x
x = 600,330,610,495,525,760/886,928,623.32 - Step 6: Final answer
x = 676,864,625.53
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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.