Home / 1,013,568.86-1,398,629.79-686,216.06

Finding the Fourth Proportional to 1,013,568.86, 1,398,629.79 and 686,216.06

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Solution

The fourth proportional to 1,013,568.86, 1,398,629.79 and 686,216.06 is: 946,913.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,568.86 : 1,398,629.79 = 686,216.06 : x
  2. Step 2: Convert to fraction form
    1,013,568.86/1,398,629.79 = 686,216.06/x
  3. Step 3: Cross multiply
    1,013,568.86x = 1,398,629.79 × 686,216.06
  4. Step 4: Simplify right side
    1,013,568.86x = 959,762,223,892.43
  5. Step 5: Solve for x
    x = 959,762,223,892.43/1,013,568.86
  6. Step 6: Final answer
    x = 946,913.68

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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.