Home / 1,238,183.32-1,708,780.63-687,079.30

Finding the Fourth Proportional to 1,238,183.32, 1,708,780.63 and 687,079.30

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Solution

The fourth proportional to 1,238,183.32, 1,708,780.63 and 687,079.30 is: 948,218.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,183.32 : 1,708,780.63 = 687,079.30 : x
  2. Step 2: Convert to fraction form
    1,238,183.32/1,708,780.63 = 687,079.30/x
  3. Step 3: Cross multiply
    1,238,183.32x = 1,708,780.63 × 687,079.30
  4. Step 4: Simplify right side
    1,238,183.32x = 1,174,067,790,570.06
  5. Step 5: Solve for x
    x = 1,174,067,790,570.06/1,238,183.32
  6. Step 6: Final answer
    x = 948,218.07

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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.