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Finding the Fourth Proportional to 6,442,969.92, 9,664,231.20 and 1,650,698.88

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Solution

The fourth proportional to 6,442,969.92, 9,664,231.20 and 1,650,698.88 is: 2,475,991.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,442,969.92 : 9,664,231.20 = 1,650,698.88 : x
  2. Step 2: Convert to fraction form
    6,442,969.92/9,664,231.20 = 1,650,698.88/x
  3. Step 3: Cross multiply
    6,442,969.92x = 9,664,231.20 × 1,650,698.88
  4. Step 4: Simplify right side
    6,442,969.92x = 15,952,735,617,901.05
  5. Step 5: Solve for x
    x = 15,952,735,617,901.05/6,442,969.92
  6. Step 6: Final answer
    x = 2,475,991.01

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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.