Home / 945,872.40-1,305,834.16-655,905.36

Finding the Fourth Proportional to 945,872.40, 1,305,834.16 and 655,905.36

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Solution

The fourth proportional to 945,872.40, 1,305,834.16 and 655,905.36 is: 905,517.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,872.40 : 1,305,834.16 = 655,905.36 : x
  2. Step 2: Convert to fraction form
    945,872.40/1,305,834.16 = 655,905.36/x
  3. Step 3: Cross multiply
    945,872.40x = 1,305,834.16 × 655,905.36
  4. Step 4: Simplify right side
    945,872.40x = 856,503,624,815.10
  5. Step 5: Solve for x
    x = 856,503,624,815.10/945,872.40
  6. Step 6: Final answer
    x = 905,517.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.