Finding the Fourth Proportional to 397,898,075.58, 549,105,349.62 and 228,380,354
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Solution
The fourth proportional to 397,898,075.58, 549,105,349.62 and 228,380,354 is: 315,168,335.38
Step by Step Solution
- Step 1: Write the proportion equation
397,898,075.58 : 549,105,349.62 = 228,380,354 : x - Step 2: Convert to fraction form
397,898,075.58/549,105,349.62 = 228,380,354/x - Step 3: Cross multiply
397,898,075.58x = 549,105,349.62 × 228,380,354 - Step 4: Simplify right side
397,898,075.58x = 125,404,874,129,509,360 - Step 5: Solve for x
x = 125,404,874,129,509,360/397,898,075.58 - Step 6: Final answer
x = 315,168,335.38
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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.