Home / 411,923.96-617,649.12-219,561.44

Finding the Fourth Proportional to 411,923.96, 617,649.12 and 219,561.44

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Solution

The fourth proportional to 411,923.96, 617,649.12 and 219,561.44 is: 329,215.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,923.96 : 617,649.12 = 219,561.44 : x
  2. Step 2: Convert to fraction form
    411,923.96/617,649.12 = 219,561.44/x
  3. Step 3: Cross multiply
    411,923.96x = 617,649.12 × 219,561.44
  4. Step 4: Simplify right side
    411,923.96x = 135,611,927,731.20
  5. Step 5: Solve for x
    x = 135,611,927,731.20/411,923.96
  6. Step 6: Final answer
    x = 329,215.93

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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.