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Finding the Fourth Proportional to 1,949,640.25, 2,923,607.12 and 925,264.09

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Solution

The fourth proportional to 1,949,640.25, 2,923,607.12 and 925,264.09 is: 1,387,491.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949,640.25 : 2,923,607.12 = 925,264.09 : x
  2. Step 2: Convert to fraction form
    1,949,640.25/2,923,607.12 = 925,264.09/x
  3. Step 3: Cross multiply
    1,949,640.25x = 2,923,607.12 × 925,264.09
  4. Step 4: Simplify right side
    1,949,640.25x = 2,705,108,662,959.43
  5. Step 5: Solve for x
    x = 2,705,108,662,959.43/1,949,640.25
  6. Step 6: Final answer
    x = 1,387,491.19

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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.