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Finding the Fourth Proportional to 3,164,763.88, 4,747,744.86 and 1,271,653.48

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Solution

The fourth proportional to 3,164,763.88, 4,747,744.86 and 1,271,653.48 is: 1,907,720.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,164,763.88 : 4,747,744.86 = 1,271,653.48 : x
  2. Step 2: Convert to fraction form
    3,164,763.88/4,747,744.86 = 1,271,653.48/x
  3. Step 3: Cross multiply
    3,164,763.88x = 4,747,744.86 × 1,271,653.48
  4. Step 4: Simplify right side
    3,164,763.88x = 6,037,486,273,371.11
  5. Step 5: Solve for x
    x = 6,037,486,273,371.11/3,164,763.88
  6. Step 6: Final answer
    x = 1,907,720.92

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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.