Finding the Fourth Proportional to 1,303,058,133.26, 1,798,207,448.71 and 708,307,231.23
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Solution
The fourth proportional to 1,303,058,133.26, 1,798,207,448.71 and 708,307,231.23 is: 977,457,034.85
Step by Step Solution
- Step 1: Write the proportion equation
1,303,058,133.26 : 1,798,207,448.71 = 708,307,231.23 : x - Step 2: Convert to fraction form
1,303,058,133.26/1,798,207,448.71 = 708,307,231.23/x - Step 3: Cross multiply
1,303,058,133.26x = 1,798,207,448.71 × 708,307,231.23 - Step 4: Simplify right side
1,303,058,133.26x = 1,273,683,339,175,034,880 - Step 5: Solve for x
x = 1,273,683,339,175,034,880/1,303,058,133.26 - Step 6: Final answer
x = 977,457,034.85
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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.