Finding the Fourth Proportional to 867,694,804.74, 1,197,785,275.74 and 585,819,105.12
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Solution
The fourth proportional to 867,694,804.74, 1,197,785,275.74 and 585,819,105.12 is: 808,677,768.41
Step by Step Solution
- Step 1: Write the proportion equation
867,694,804.74 : 1,197,785,275.74 = 585,819,105.12 : x - Step 2: Convert to fraction form
867,694,804.74/1,197,785,275.74 = 585,819,105.12/x - Step 3: Cross multiply
867,694,804.74x = 1,197,785,275.74 × 585,819,105.12 - Step 4: Simplify right side
867,694,804.74x = 701,685,498,359,919,232 - Step 5: Solve for x
x = 701,685,498,359,919,232/867,694,804.74 - Step 6: Final answer
x = 808,677,768.41
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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.