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Finding the Fourth Proportional to 1,294,905.21, 1,942,917.33 and 695,166.03

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Solution

The fourth proportional to 1,294,905.21, 1,942,917.33 and 695,166.03 is: 1,043,049.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,905.21 : 1,942,917.33 = 695,166.03 : x
  2. Step 2: Convert to fraction form
    1,294,905.21/1,942,917.33 = 695,166.03/x
  3. Step 3: Cross multiply
    1,294,905.21x = 1,942,917.33 × 695,166.03
  4. Step 4: Simplify right side
    1,294,905.21x = 1,350,650,126,914.30
  5. Step 5: Solve for x
    x = 1,350,650,126,914.30/1,294,905.21
  6. Step 6: Final answer
    x = 1,043,049.42

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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.