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Finding the Fourth Proportional to 408,064.62, 563,117.91 and 226,771.89

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Solution

The fourth proportional to 408,064.62, 563,117.91 and 226,771.89 is: 312,938.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,064.62 : 563,117.91 = 226,771.89 : x
  2. Step 2: Convert to fraction form
    408,064.62/563,117.91 = 226,771.89/x
  3. Step 3: Cross multiply
    408,064.62x = 563,117.91 × 226,771.89
  4. Step 4: Simplify right side
    408,064.62x = 127,699,312,743.55
  5. Step 5: Solve for x
    x = 127,699,312,743.55/408,064.62
  6. Step 6: Final answer
    x = 312,938.95

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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.