Finding the Fourth Proportional to 621,821.18, 931,237.05 and 354,772.07
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Solution
The fourth proportional to 621,821.18, 931,237.05 and 354,772.07 is: 531,305.32
Step by Step Solution
- Step 1: Write the proportion equation
621,821.18 : 931,237.05 = 354,772.07 : x - Step 2: Convert to fraction form
621,821.18/931,237.05 = 354,772.07/x - Step 3: Cross multiply
621,821.18x = 931,237.05 × 354,772.07 - Step 4: Simplify right side
621,821.18x = 330,376,899,298.16 - Step 5: Solve for x
x = 330,376,899,298.16/621,821.18 - Step 6: Final answer
x = 531,305.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.