Finding the Fourth Proportional to 1,154,686.19, 1,593,402.66 and 638,410.23
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Solution
The fourth proportional to 1,154,686.19, 1,593,402.66 and 638,410.23 is: 880,970.58
Step by Step Solution
- Step 1: Write the proportion equation
1,154,686.19 : 1,593,402.66 = 638,410.23 : x - Step 2: Convert to fraction form
1,154,686.19/1,593,402.66 = 638,410.23/x - Step 3: Cross multiply
1,154,686.19x = 1,593,402.66 × 638,410.23 - Step 4: Simplify right side
1,154,686.19x = 1,017,244,558,653.21 - Step 5: Solve for x
x = 1,017,244,558,653.21/1,154,686.19 - Step 6: Final answer
x = 880,970.58
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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.