Finding the Fourth Proportional to 1,289,512.68, 1,778,975.45 and 805,237.07
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Solution
The fourth proportional to 1,289,512.68, 1,778,975.45 and 805,237.07 is: 1,110,882.42
Step by Step Solution
- Step 1: Write the proportion equation
1,289,512.68 : 1,778,975.45 = 805,237.07 : x - Step 2: Convert to fraction form
1,289,512.68/1,778,975.45 = 805,237.07/x - Step 3: Cross multiply
1,289,512.68x = 1,778,975.45 × 805,237.07 - Step 4: Simplify right side
1,289,512.68x = 1,432,496,966,038.87 - Step 5: Solve for x
x = 1,432,496,966,038.87/1,289,512.68 - Step 6: Final answer
x = 1,110,882.42
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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.