Finding the Fourth Proportional to 211,771,703.80, 317,657,555.70 and 211,771,703.80
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Solution
The fourth proportional to 211,771,703.80, 317,657,555.70 and 211,771,703.80 is: 317,657,555.70
Step by Step Solution
- Step 1: Write the proportion equation
211,771,703.80 : 317,657,555.70 = 211,771,703.80 : x - Step 2: Convert to fraction form
211,771,703.80/317,657,555.70 = 211,771,703.80/x - Step 3: Cross multiply
211,771,703.80x = 317,657,555.70 × 211,771,703.80 - Step 4: Simplify right side
211,771,703.80x = 67,270,881,795,532,400 - Step 5: Solve for x
x = 67,270,881,795,532,400/211,771,703.80 - Step 6: Final answer
x = 317,657,555.70
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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.