Finding the Fourth Proportional to 1,176,363,389.17, 1,623,410,588.17 and 640,544,428.65
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Solution
The fourth proportional to 1,176,363,389.17, 1,623,410,588.17 and 640,544,428.65 is: 883,967,162.90
Step by Step Solution
- Step 1: Write the proportion equation
1,176,363,389.17 : 1,623,410,588.17 = 640,544,428.65 : x - Step 2: Convert to fraction form
1,176,363,389.17/1,623,410,588.17 = 640,544,428.65/x - Step 3: Cross multiply
1,176,363,389.17x = 1,623,410,588.17 × 640,544,428.65 - Step 4: Simplify right side
1,176,363,389.17x = 1,039,866,607,660,894,720 - Step 5: Solve for x
x = 1,039,866,607,660,894,720/1,176,363,389.17 - Step 6: Final answer
x = 883,967,162.90
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1.5x scale
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.