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Finding the Fourth Proportional to 404,302.10, 606,368.10 and 204,434.60

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Solution

The fourth proportional to 404,302.10, 606,368.10 and 204,434.60 is: 306,608.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,302.10 : 606,368.10 = 204,434.60 : x
  2. Step 2: Convert to fraction form
    404,302.10/606,368.10 = 204,434.60/x
  3. Step 3: Cross multiply
    404,302.10x = 606,368.10 × 204,434.60
  4. Step 4: Simplify right side
    404,302.10x = 123,962,619,976.26
  5. Step 5: Solve for x
    x = 123,962,619,976.26/404,302.10
  6. Step 6: Final answer
    x = 306,608.89

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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.