Home / 1,191,425.15-1,644,183.36-647,560.78

Finding the Fourth Proportional to 1,191,425.15, 1,644,183.36 and 647,560.78

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Solution

The fourth proportional to 1,191,425.15, 1,644,183.36 and 647,560.78 is: 893,642.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,425.15 : 1,644,183.36 = 647,560.78 : x
  2. Step 2: Convert to fraction form
    1,191,425.15/1,644,183.36 = 647,560.78/x
  3. Step 3: Cross multiply
    1,191,425.15x = 1,644,183.36 × 647,560.78
  4. Step 4: Simplify right side
    1,191,425.15x = 1,064,708,659,064.62
  5. Step 5: Solve for x
    x = 1,064,708,659,064.62/1,191,425.15
  6. Step 6: Final answer
    x = 893,642.93

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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.