Finding the Fourth Proportional to 1,223,777.16, 1,688,865.04 and 679,912.97
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Solution
The fourth proportional to 1,223,777.16, 1,688,865.04 and 679,912.97 is: 938,309.09
Step by Step Solution
- Step 1: Write the proportion equation
1,223,777.16 : 1,688,865.04 = 679,912.97 : x - Step 2: Convert to fraction form
1,223,777.16/1,688,865.04 = 679,912.97/x - Step 3: Cross multiply
1,223,777.16x = 1,688,865.04 × 679,912.97 - Step 4: Simplify right side
1,223,777.16x = 1,148,281,237,681.13 - Step 5: Solve for x
x = 1,148,281,237,681.13/1,223,777.16 - Step 6: Final answer
x = 938,309.09
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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.