Home / 579,763.44-867,986.28-392,439.60

Finding the Fourth Proportional to 579,763.44, 867,986.28 and 392,439.60

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Solution

The fourth proportional to 579,763.44, 867,986.28 and 392,439.60 is: 587,536.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,763.44 : 867,986.28 = 392,439.60 : x
  2. Step 2: Convert to fraction form
    579,763.44/867,986.28 = 392,439.60/x
  3. Step 3: Cross multiply
    579,763.44x = 867,986.28 × 392,439.60
  4. Step 4: Simplify right side
    579,763.44x = 340,632,188,528.69
  5. Step 5: Solve for x
    x = 340,632,188,528.69/579,763.44
  6. Step 6: Final answer
    x = 587,536.51

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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.