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Finding the Fourth Proportional to 1,805,734.08, 2,491,897.12 and 989,922.92

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Solution

The fourth proportional to 1,805,734.08, 2,491,897.12 and 989,922.92 is: 1,366,084.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805,734.08 : 2,491,897.12 = 989,922.92 : x
  2. Step 2: Convert to fraction form
    1,805,734.08/2,491,897.12 = 989,922.92/x
  3. Step 3: Cross multiply
    1,805,734.08x = 2,491,897.12 × 989,922.92
  4. Step 4: Simplify right side
    1,805,734.08x = 2,466,786,073,369.99
  5. Step 5: Solve for x
    x = 2,466,786,073,369.99/1,805,734.08
  6. Step 6: Final answer
    x = 1,366,084.91

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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.