Finding the Fourth Proportional to 622,885,541.20, 934,328,311.80 and 613,200,028.99
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Solution
The fourth proportional to 622,885,541.20, 934,328,311.80 and 613,200,028.99 is: 919,800,043.49
Step by Step Solution
- Step 1: Write the proportion equation
622,885,541.20 : 934,328,311.80 = 613,200,028.99 : x - Step 2: Convert to fraction form
622,885,541.20/934,328,311.80 = 613,200,028.99/x - Step 3: Cross multiply
622,885,541.20x = 934,328,311.80 × 613,200,028.99 - Step 4: Simplify right side
622,885,541.20x = 572,930,147,881,937,728 - Step 5: Solve for x
x = 572,930,147,881,937,728/622,885,541.20 - Step 6: Final answer
x = 919,800,043.49
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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.