Finding the Fourth Proportional to 885,645,489.60, 1,328,468,234.40 and 239,413,233.60
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Solution
The fourth proportional to 885,645,489.60, 1,328,468,234.40 and 239,413,233.60 is: 359,119,850.40
Step by Step Solution
- Step 1: Write the proportion equation
885,645,489.60 : 1,328,468,234.40 = 239,413,233.60 : x - Step 2: Convert to fraction form
885,645,489.60/1,328,468,234.40 = 239,413,233.60/x - Step 3: Cross multiply
885,645,489.60x = 1,328,468,234.40 × 239,413,233.60 - Step 4: Simplify right side
885,645,489.60x = 318,052,875,732,586,752 - Step 5: Solve for x
x = 318,052,875,732,586,752/885,645,489.60 - Step 6: Final answer
x = 359,119,850.40
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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.