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Finding the Fourth Proportional to 3,949,292.20, 5,923,938.30 and 957,476.20

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Solution

The fourth proportional to 3,949,292.20, 5,923,938.30 and 957,476.20 is: 1,436,214.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949,292.20 : 5,923,938.30 = 957,476.20 : x
  2. Step 2: Convert to fraction form
    3,949,292.20/5,923,938.30 = 957,476.20/x
  3. Step 3: Cross multiply
    3,949,292.20x = 5,923,938.30 × 957,476.20
  4. Step 4: Simplify right side
    3,949,292.20x = 5,672,029,932,518.46
  5. Step 5: Solve for x
    x = 5,672,029,932,518.46/3,949,292.20
  6. Step 6: Final answer
    x = 1,436,214.30

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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.