Home / 1,638,987.40-2,458,481.10-641,715.40

Finding the Fourth Proportional to 1,638,987.40, 2,458,481.10 and 641,715.40

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Solution

The fourth proportional to 1,638,987.40, 2,458,481.10 and 641,715.40 is: 962,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,987.40 : 2,458,481.10 = 641,715.40 : x
  2. Step 2: Convert to fraction form
    1,638,987.40/2,458,481.10 = 641,715.40/x
  3. Step 3: Cross multiply
    1,638,987.40x = 2,458,481.10 × 641,715.40
  4. Step 4: Simplify right side
    1,638,987.40x = 1,577,645,182,478.94
  5. Step 5: Solve for x
    x = 1,577,645,182,478.94/1,638,987.40
  6. Step 6: Final answer
    x = 962,573.10

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Similar ratio
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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.