Home / 695,789.08-960,162.06-393,983.80

Finding the Fourth Proportional to 695,789.08, 960,162.06 and 393,983.80

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Solution

The fourth proportional to 695,789.08, 960,162.06 and 393,983.80 is: 543,682.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,789.08 : 960,162.06 = 393,983.80 : x
  2. Step 2: Convert to fraction form
    695,789.08/960,162.06 = 393,983.80/x
  3. Step 3: Cross multiply
    695,789.08x = 960,162.06 × 393,983.80
  4. Step 4: Simplify right side
    695,789.08x = 378,288,297,014.63
  5. Step 5: Solve for x
    x = 378,288,297,014.63/695,789.08
  6. Step 6: Final answer
    x = 543,682.43

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1.5x scale

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.