Home / 644,154.28-965,723.22-406,997.08

Finding the Fourth Proportional to 644,154.28, 965,723.22 and 406,997.08

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Solution

The fourth proportional to 644,154.28, 965,723.22 and 406,997.08 is: 610,174.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,154.28 : 965,723.22 = 406,997.08 : x
  2. Step 2: Convert to fraction form
    644,154.28/965,723.22 = 406,997.08/x
  3. Step 3: Cross multiply
    644,154.28x = 965,723.22 × 406,997.08
  4. Step 4: Simplify right side
    644,154.28x = 393,046,530,628.20
  5. Step 5: Solve for x
    x = 393,046,530,628.20/644,154.28
  6. Step 6: Final answer
    x = 610,174.52

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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.