Finding the Fourth Proportional to 555,980,644.76, 767,251,184.31 and 305,089,234.34
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Solution
The fourth proportional to 555,980,644.76, 767,251,184.31 and 305,089,234.34 is: 421,021,988.04
Step by Step Solution
- Step 1: Write the proportion equation
555,980,644.76 : 767,251,184.31 = 305,089,234.34 : x - Step 2: Convert to fraction form
555,980,644.76/767,251,184.31 = 305,089,234.34/x - Step 3: Cross multiply
555,980,644.76x = 767,251,184.31 × 305,089,234.34 - Step 4: Simplify right side
555,980,644.76x = 234,080,076,363,759,840 - Step 5: Solve for x
x = 234,080,076,363,759,840/555,980,644.76 - Step 6: Final answer
x = 421,021,988.04
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.