Home / 1,288,162.56-1,777,656.32-707,393.28

Finding the Fourth Proportional to 1,288,162.56, 1,777,656.32 and 707,393.28

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Solution

The fourth proportional to 1,288,162.56, 1,777,656.32 and 707,393.28 is: 976,198.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,162.56 : 1,777,656.32 = 707,393.28 : x
  2. Step 2: Convert to fraction form
    1,288,162.56/1,777,656.32 = 707,393.28/x
  3. Step 3: Cross multiply
    1,288,162.56x = 1,777,656.32 × 707,393.28
  4. Step 4: Simplify right side
    1,288,162.56x = 1,257,502,134,917.53
  5. Step 5: Solve for x
    x = 1,257,502,134,917.53/1,288,162.56
  6. Step 6: Final answer
    x = 976,198.33

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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.