Home / 1,013,568.36-1,398,629.10-686,215.56

Finding the Fourth Proportional to 1,013,568.36, 1,398,629.10 and 686,215.56

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Solution

The fourth proportional to 1,013,568.36, 1,398,629.10 and 686,215.56 is: 946,912.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,568.36 : 1,398,629.10 = 686,215.56 : x
  2. Step 2: Convert to fraction form
    1,013,568.36/1,398,629.10 = 686,215.56/x
  3. Step 3: Cross multiply
    1,013,568.36x = 1,398,629.10 × 686,215.56
  4. Step 4: Simplify right side
    1,013,568.36x = 959,761,051,088.80
  5. Step 5: Solve for x
    x = 959,761,051,088.80/1,013,568.36
  6. Step 6: Final answer
    x = 946,912.99

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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.