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Finding the Fourth Proportional to 3,664,339.60, 5,494,954.20 and 1,771,661.20

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Solution

The fourth proportional to 3,664,339.60, 5,494,954.20 and 1,771,661.20 is: 2,656,739.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664,339.60 : 5,494,954.20 = 1,771,661.20 : x
  2. Step 2: Convert to fraction form
    3,664,339.60/5,494,954.20 = 1,771,661.20/x
  3. Step 3: Cross multiply
    3,664,339.60x = 5,494,954.20 × 1,771,661.20
  4. Step 4: Simplify right side
    3,664,339.60x = 9,735,197,151,917.04
  5. Step 5: Solve for x
    x = 9,735,197,151,917.04/3,664,339.60
  6. Step 6: Final answer
    x = 2,656,739.88

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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.