Home / 1,191,426.39-1,644,179.40-647,563.41

Finding the Fourth Proportional to 1,191,426.39, 1,644,179.40 and 647,563.41

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Solution

The fourth proportional to 1,191,426.39, 1,644,179.40 and 647,563.41 is: 893,643.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,426.39 : 1,644,179.40 = 647,563.41 : x
  2. Step 2: Convert to fraction form
    1,191,426.39/1,644,179.40 = 647,563.41/x
  3. Step 3: Cross multiply
    1,191,426.39x = 1,644,179.40 × 647,563.41
  4. Step 4: Simplify right side
    1,191,426.39x = 1,064,710,418,915.75
  5. Step 5: Solve for x
    x = 1,064,710,418,915.75/1,191,426.39
  6. Step 6: Final answer
    x = 893,643.47

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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.