Finding the Fourth Proportional to 1,648,133,048.70, 2,472,199,573.05 and 557,616,116.70
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Solution
The fourth proportional to 1,648,133,048.70, 2,472,199,573.05 and 557,616,116.70 is: 836,424,175.05
Step by Step Solution
- Step 1: Write the proportion equation
1,648,133,048.70 : 2,472,199,573.05 = 557,616,116.70 : x - Step 2: Convert to fraction form
1,648,133,048.70/2,472,199,573.05 = 557,616,116.70/x - Step 3: Cross multiply
1,648,133,048.70x = 2,472,199,573.05 × 557,616,116.70 - Step 4: Simplify right side
1,648,133,048.70x = 1,378,538,325,631,539,200 - Step 5: Solve for x
x = 1,378,538,325,631,539,200/1,648,133,048.70 - Step 6: Final answer
x = 836,424,175.05
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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.