Finding the Fourth Proportional to 1,185,867.66, 1,636,485.66 and 641,989.08
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Solution
The fourth proportional to 1,185,867.66, 1,636,485.66 and 641,989.08 is: 885,938.59
Step by Step Solution
- Step 1: Write the proportion equation
1,185,867.66 : 1,636,485.66 = 641,989.08 : x - Step 2: Convert to fraction form
1,185,867.66/1,636,485.66 = 641,989.08/x - Step 3: Cross multiply
1,185,867.66x = 1,636,485.66 × 641,989.08 - Step 4: Simplify right side
1,185,867.66x = 1,050,605,923,296.59 - Step 5: Solve for x
x = 1,050,605,923,296.59/1,185,867.66 - Step 6: Final answer
x = 885,938.59
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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.