Finding the Fourth Proportional to 527,986.60, 728,618.01 and 286,268.42
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Solution
The fourth proportional to 527,986.60, 728,618.01 and 286,268.42 is: 395,048.52
Step by Step Solution
- Step 1: Write the proportion equation
527,986.60 : 728,618.01 = 286,268.42 : x - Step 2: Convert to fraction form
527,986.60/728,618.01 = 286,268.42/x - Step 3: Cross multiply
527,986.60x = 728,618.01 × 286,268.42 - Step 4: Simplify right side
527,986.60x = 208,580,326,506.24 - Step 5: Solve for x
x = 208,580,326,506.24/527,986.60 - Step 6: Final answer
x = 395,048.52
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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.