Home / 579,496.80-868,856.40-263,791.20

Finding the Fourth Proportional to 579,496.80, 868,856.40 and 263,791.20

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Solution

The fourth proportional to 579,496.80, 868,856.40 and 263,791.20 is: 395,509.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,496.80 : 868,856.40 = 263,791.20 : x
  2. Step 2: Convert to fraction form
    579,496.80/868,856.40 = 263,791.20/x
  3. Step 3: Cross multiply
    579,496.80x = 868,856.40 × 263,791.20
  4. Step 4: Simplify right side
    579,496.80x = 229,196,672,383.68
  5. Step 5: Solve for x
    x = 229,196,672,383.68/579,496.80
  6. Step 6: Final answer
    x = 395,509.82

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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.