Home / 1,191,642.12-1,644,454.43-647,745.55

Finding the Fourth Proportional to 1,191,642.12, 1,644,454.43 and 647,745.55

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Solution

The fourth proportional to 1,191,642.12, 1,644,454.43 and 647,745.55 is: 893,882.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,642.12 : 1,644,454.43 = 647,745.55 : x
  2. Step 2: Convert to fraction form
    1,191,642.12/1,644,454.43 = 647,745.55/x
  3. Step 3: Cross multiply
    1,191,642.12x = 1,644,454.43 × 647,745.55
  4. Step 4: Simplify right side
    1,191,642.12x = 1,065,188,036,718.51
  5. Step 5: Solve for x
    x = 1,065,188,036,718.51/1,191,642.12
  6. Step 6: Final answer
    x = 893,882.50

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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.