Home / 405,584.57-559,692.03-221,816.86

Finding the Fourth Proportional to 405,584.57, 559,692.03 and 221,816.86

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Solution

The fourth proportional to 405,584.57, 559,692.03 and 221,816.86 is: 306,099.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,584.57 : 559,692.03 = 221,816.86 : x
  2. Step 2: Convert to fraction form
    405,584.57/559,692.03 = 221,816.86/x
  3. Step 3: Cross multiply
    405,584.57x = 559,692.03 × 221,816.86
  4. Step 4: Simplify right side
    405,584.57x = 124,149,125,863.17
  5. Step 5: Solve for x
    x = 124,149,125,863.17/405,584.57
  6. Step 6: Final answer
    x = 306,099.24

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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.