Finding the Fourth Proportional to 1,039,153,296.68, 1,434,020,125.18 and 562,831,816.38
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Solution
The fourth proportional to 1,039,153,296.68, 1,434,020,125.18 and 562,831,816.38 is: 776,701,718.95
Step by Step Solution
- Step 1: Write the proportion equation
1,039,153,296.68 : 1,434,020,125.18 = 562,831,816.38 : x - Step 2: Convert to fraction form
1,039,153,296.68/1,434,020,125.18 = 562,831,816.38/x - Step 3: Cross multiply
1,039,153,296.68x = 1,434,020,125.18 × 562,831,816.38 - Step 4: Simplify right side
1,039,153,296.68x = 807,112,151,780,534,400 - Step 5: Solve for x
x = 807,112,151,780,534,400/1,039,153,296.68 - Step 6: Final answer
x = 776,701,718.95
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Double scale
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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.