Finding the Fourth Proportional to 3,157,838.16, 4,357,553.40 and 1,781,106
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Solution
The fourth proportional to 3,157,838.16, 4,357,553.40 and 1,781,106 is: 2,457,777.79
Step by Step Solution
- Step 1: Write the proportion equation
3,157,838.16 : 4,357,553.40 = 1,781,106 : x - Step 2: Convert to fraction form
3,157,838.16/4,357,553.40 = 1,781,106/x - Step 3: Cross multiply
3,157,838.16x = 4,357,553.40 × 1,781,106 - Step 4: Simplify right side
3,157,838.16x = 7,761,264,506,060.40 - Step 5: Solve for x
x = 7,761,264,506,060.40/3,157,838.16 - Step 6: Final answer
x = 2,457,777.79
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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.