Home / 893,608.20-1,340,412.30-515,694.60

Finding the Fourth Proportional to 893,608.20, 1,340,412.30 and 515,694.60

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Solution

The fourth proportional to 893,608.20, 1,340,412.30 and 515,694.60 is: 773,541.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,608.20 : 1,340,412.30 = 515,694.60 : x
  2. Step 2: Convert to fraction form
    893,608.20/1,340,412.30 = 515,694.60/x
  3. Step 3: Cross multiply
    893,608.20x = 1,340,412.30 × 515,694.60
  4. Step 4: Simplify right side
    893,608.20x = 691,243,384,883.58
  5. Step 5: Solve for x
    x = 691,243,384,883.58/893,608.20
  6. Step 6: Final answer
    x = 773,541.90

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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.