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Finding the Fourth Proportional to 3,936,698.72, 5,905,048.08 and 944,882.72

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Solution

The fourth proportional to 3,936,698.72, 5,905,048.08 and 944,882.72 is: 1,417,324.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936,698.72 : 5,905,048.08 = 944,882.72 : x
  2. Step 2: Convert to fraction form
    3,936,698.72/5,905,048.08 = 944,882.72/x
  3. Step 3: Cross multiply
    3,936,698.72x = 5,905,048.08 × 944,882.72
  4. Step 4: Simplify right side
    3,936,698.72x = 5,579,577,882,408.21
  5. Step 5: Solve for x
    x = 5,579,577,882,408.21/3,936,698.72
  6. Step 6: Final answer
    x = 1,417,324.08

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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.