Home / 1,135,240.88-1,700,934.32-685,015.76

Finding the Fourth Proportional to 1,135,240.88, 1,700,934.32 and 685,015.76

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Solution

The fourth proportional to 1,135,240.88, 1,700,934.32 and 685,015.76 is: 1,026,360.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135,240.88 : 1,700,934.32 = 685,015.76 : x
  2. Step 2: Convert to fraction form
    1,135,240.88/1,700,934.32 = 685,015.76/x
  3. Step 3: Cross multiply
    1,135,240.88x = 1,700,934.32 × 685,015.76
  4. Step 4: Simplify right side
    1,135,240.88x = 1,165,166,815,924.88
  5. Step 5: Solve for x
    x = 1,165,166,815,924.88/1,135,240.88
  6. Step 6: Final answer
    x = 1,026,360.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.