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Finding the Fourth Proportional to 1,936,739.75, 2,905,576.20 and 607,043.75

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Solution

The fourth proportional to 1,936,739.75, 2,905,576.20 and 607,043.75 is: 910,711.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936,739.75 : 2,905,576.20 = 607,043.75 : x
  2. Step 2: Convert to fraction form
    1,936,739.75/2,905,576.20 = 607,043.75/x
  3. Step 3: Cross multiply
    1,936,739.75x = 2,905,576.20 × 607,043.75
  4. Step 4: Simplify right side
    1,936,739.75x = 1,763,811,872,358.75
  5. Step 5: Solve for x
    x = 1,763,811,872,358.75/1,936,739.75
  6. Step 6: Final answer
    x = 910,711.87

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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.