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Finding the Fourth Proportional to 482,979.60, 724,469.40 and 294,022.80

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Solution

The fourth proportional to 482,979.60, 724,469.40 and 294,022.80 is: 441,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,979.60 : 724,469.40 = 294,022.80 : x
  2. Step 2: Convert to fraction form
    482,979.60/724,469.40 = 294,022.80/x
  3. Step 3: Cross multiply
    482,979.60x = 724,469.40 × 294,022.80
  4. Step 4: Simplify right side
    482,979.60x = 213,010,521,502.32
  5. Step 5: Solve for x
    x = 213,010,521,502.32/482,979.60
  6. Step 6: Final answer
    x = 441,034.20

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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.