Finding the Fourth Proportional to 778,611.84, 1,074,451.68 and 439,111.68
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Solution
The fourth proportional to 778,611.84, 1,074,451.68 and 439,111.68 is: 605,955.70
Step by Step Solution
- Step 1: Write the proportion equation
778,611.84 : 1,074,451.68 = 439,111.68 : x - Step 2: Convert to fraction form
778,611.84/1,074,451.68 = 439,111.68/x - Step 3: Cross multiply
778,611.84x = 1,074,451.68 × 439,111.68 - Step 4: Simplify right side
778,611.84x = 471,804,282,283.62 - Step 5: Solve for x
x = 471,804,282,283.62/778,611.84 - Step 6: Final answer
x = 605,955.70
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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.