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Finding the Fourth Proportional to 716,912.25, 989,223.11 and 410,932.29

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Solution

The fourth proportional to 716,912.25, 989,223.11 and 410,932.29 is: 567,020.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,912.25 : 989,223.11 = 410,932.29 : x
  2. Step 2: Convert to fraction form
    716,912.25/989,223.11 = 410,932.29/x
  3. Step 3: Cross multiply
    716,912.25x = 989,223.11 × 410,932.29
  4. Step 4: Simplify right side
    716,912.25x = 406,503,715,858.56
  5. Step 5: Solve for x
    x = 406,503,715,858.56/716,912.25
  6. Step 6: Final answer
    x = 567,020.18

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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.