Finding the Fourth Proportional to 663,602,938.40, 995,404,407.60 and 526,546,272.80
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Solution
The fourth proportional to 663,602,938.40, 995,404,407.60 and 526,546,272.80 is: 789,819,409.20
Step by Step Solution
- Step 1: Write the proportion equation
663,602,938.40 : 995,404,407.60 = 526,546,272.80 : x - Step 2: Convert to fraction form
663,602,938.40/995,404,407.60 = 526,546,272.80/x - Step 3: Cross multiply
663,602,938.40x = 995,404,407.60 × 526,546,272.80 - Step 4: Simplify right side
663,602,938.40x = 524,126,480,750,472,000 - Step 5: Solve for x
x = 524,126,480,750,472,000/663,602,938.40 - Step 6: Final answer
x = 789,819,409.20
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.