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Finding the Fourth Proportional to 404,068.64, 606,277.76 and 216,861.44

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Solution

The fourth proportional to 404,068.64, 606,277.76 and 216,861.44 is: 325,385.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,068.64 : 606,277.76 = 216,861.44 : x
  2. Step 2: Convert to fraction form
    404,068.64/606,277.76 = 216,861.44/x
  3. Step 3: Cross multiply
    404,068.64x = 606,277.76 × 216,861.44
  4. Step 4: Simplify right side
    404,068.64x = 131,478,268,073.57
  5. Step 5: Solve for x
    x = 131,478,268,073.57/404,068.64
  6. Step 6: Final answer
    x = 325,385.97

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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.