Home / 957,363.30-1,321,144.20-521,784.56

Finding the Fourth Proportional to 957,363.30, 1,321,144.20 and 521,784.56

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Solution

The fourth proportional to 957,363.30, 1,321,144.20 and 521,784.56 is: 720,053.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,363.30 : 1,321,144.20 = 521,784.56 : x
  2. Step 2: Convert to fraction form
    957,363.30/1,321,144.20 = 521,784.56/x
  3. Step 3: Cross multiply
    957,363.30x = 1,321,144.20 × 521,784.56
  4. Step 4: Simplify right side
    957,363.30x = 689,352,645,093.55
  5. Step 5: Solve for x
    x = 689,352,645,093.55/957,363.30
  6. Step 6: Final answer
    x = 720,053.34

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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.