Home / 1,191,340.30-1,644,065.41-647,486.86

Finding the Fourth Proportional to 1,191,340.30, 1,644,065.41 and 647,486.86

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Solution

The fourth proportional to 1,191,340.30, 1,644,065.41 and 647,486.86 is: 893,540.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,340.30 : 1,644,065.41 = 647,486.86 : x
  2. Step 2: Convert to fraction form
    1,191,340.30/1,644,065.41 = 647,486.86/x
  3. Step 3: Cross multiply
    1,191,340.30x = 1,644,065.41 × 647,486.86
  4. Step 4: Simplify right side
    1,191,340.30x = 1,064,510,741,735.19
  5. Step 5: Solve for x
    x = 1,064,510,741,735.19/1,191,340.30
  6. Step 6: Final answer
    x = 893,540.45

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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.