Finding the Fourth Proportional to 611,981.60, 917,973.12 and 191,259.68
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Solution
The fourth proportional to 611,981.60, 917,973.12 and 191,259.68 is: 286,889.75
Step by Step Solution
- Step 1: Write the proportion equation
611,981.60 : 917,973.12 = 191,259.68 : x - Step 2: Convert to fraction form
611,981.60/917,973.12 = 191,259.68/x - Step 3: Cross multiply
611,981.60x = 917,973.12 × 191,259.68 - Step 4: Simplify right side
611,981.60x = 175,571,245,179.80 - Step 5: Solve for x
x = 175,571,245,179.80/611,981.60 - Step 6: Final answer
x = 286,889.75
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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.