Finding the Fourth Proportional to 545,936,700.70, 818,905,051.05 and 239,826,684.70
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Solution
The fourth proportional to 545,936,700.70, 818,905,051.05 and 239,826,684.70 is: 359,740,027.05
Step by Step Solution
- Step 1: Write the proportion equation
545,936,700.70 : 818,905,051.05 = 239,826,684.70 : x - Step 2: Convert to fraction form
545,936,700.70/818,905,051.05 = 239,826,684.70/x - Step 3: Cross multiply
545,936,700.70x = 818,905,051.05 × 239,826,684.70 - Step 4: Simplify right side
545,936,700.70x = 196,395,283,477,405,728 - Step 5: Solve for x
x = 196,395,283,477,405,728/545,936,700.70 - Step 6: Final answer
x = 359,740,027.05
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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.