Home / 578,600.20-868,083.90-279,107.56

Finding the Fourth Proportional to 578,600.20, 868,083.90 and 279,107.56

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Solution

The fourth proportional to 578,600.20, 868,083.90 and 279,107.56 is: 418,749.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,600.20 : 868,083.90 = 279,107.56 : x
  2. Step 2: Convert to fraction form
    578,600.20/868,083.90 = 279,107.56/x
  3. Step 3: Cross multiply
    578,600.20x = 868,083.90 × 279,107.56
  4. Step 4: Simplify right side
    578,600.20x = 242,288,779,204.28
  5. Step 5: Solve for x
    x = 242,288,779,204.28/578,600.20
  6. Step 6: Final answer
    x = 418,749.91

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1.5x scale

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.