Finding the Fourth Proportional to 935,941.66, 1,291,599.74 and 528,129.95
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Solution
The fourth proportional to 935,941.66, 1,291,599.74 and 528,129.95 is: 728,819.47
Step by Step Solution
- Step 1: Write the proportion equation
935,941.66 : 1,291,599.74 = 528,129.95 : x - Step 2: Convert to fraction form
935,941.66/1,291,599.74 = 528,129.95/x - Step 3: Cross multiply
935,941.66x = 1,291,599.74 × 528,129.95 - Step 4: Simplify right side
935,941.66x = 682,132,500,968.54 - Step 5: Solve for x
x = 682,132,500,968.54/935,941.66 - Step 6: Final answer
x = 728,819.47
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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.