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Finding the Fourth Proportional to 404,440.40, 606,790.20 and 271,470.80

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Solution

The fourth proportional to 404,440.40, 606,790.20 and 271,470.80 is: 407,293.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,440.40 : 606,790.20 = 271,470.80 : x
  2. Step 2: Convert to fraction form
    404,440.40/606,790.20 = 271,470.80/x
  3. Step 3: Cross multiply
    404,440.40x = 606,790.20 × 271,470.80
  4. Step 4: Simplify right side
    404,440.40x = 164,725,821,026.16
  5. Step 5: Solve for x
    x = 164,725,821,026.16/404,440.40
  6. Step 6: Final answer
    x = 407,293.19

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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.