Finding the Fourth Proportional to 1,034,244,809.70, 1,551,367,214.55 and 905,104,646.70
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Solution
The fourth proportional to 1,034,244,809.70, 1,551,367,214.55 and 905,104,646.70 is: 1,357,656,970.05
Step by Step Solution
- Step 1: Write the proportion equation
1,034,244,809.70 : 1,551,367,214.55 = 905,104,646.70 : x - Step 2: Convert to fraction form
1,034,244,809.70/1,551,367,214.55 = 905,104,646.70/x - Step 3: Cross multiply
1,034,244,809.70x = 1,551,367,214.55 × 905,104,646.70 - Step 4: Simplify right side
1,034,244,809.70x = 1,404,149,674,627,240,960 - Step 5: Solve for x
x = 1,404,149,674,627,240,960/1,034,244,809.70 - Step 6: Final answer
x = 1,357,656,970.05
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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.