Finding the Fourth Proportional to 528,669.08, 729,564.05 and 286,951.70
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Solution
The fourth proportional to 528,669.08, 729,564.05 and 286,951.70 is: 395,993.73
Step by Step Solution
- Step 1: Write the proportion equation
528,669.08 : 729,564.05 = 286,951.70 : x - Step 2: Convert to fraction form
528,669.08/729,564.05 = 286,951.70/x - Step 3: Cross multiply
528,669.08x = 729,564.05 × 286,951.70 - Step 4: Simplify right side
528,669.08x = 209,349,639,323.81 - Step 5: Solve for x
x = 209,349,639,323.81/528,669.08 - Step 6: Final answer
x = 395,993.73
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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.