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Finding the Fourth Proportional to 409,847.69, 565,588.72 and 228,559.83

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Solution

The fourth proportional to 409,847.69, 565,588.72 and 228,559.83 is: 315,411.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,847.69 : 565,588.72 = 228,559.83 : x
  2. Step 2: Convert to fraction form
    409,847.69/565,588.72 = 228,559.83/x
  3. Step 3: Cross multiply
    409,847.69x = 565,588.72 × 228,559.83
  4. Step 4: Simplify right side
    409,847.69x = 129,270,861,121.72
  5. Step 5: Solve for x
    x = 129,270,861,121.72/409,847.69
  6. Step 6: Final answer
    x = 315,411.95

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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.