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Finding the Fourth Proportional to 404,438.10, 606,572.10 and 204,570.60

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Solution

The fourth proportional to 404,438.10, 606,572.10 and 204,570.60 is: 306,812.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,438.10 : 606,572.10 = 204,570.60 : x
  2. Step 2: Convert to fraction form
    404,438.10/606,572.10 = 204,570.60/x
  3. Step 3: Cross multiply
    404,438.10x = 606,572.10 × 204,570.60
  4. Step 4: Simplify right side
    404,438.10x = 124,086,818,440.26
  5. Step 5: Solve for x
    x = 124,086,818,440.26/404,438.10
  6. Step 6: Final answer
    x = 306,812.88

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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.