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Finding the Fourth Proportional to 441,781.60, 662,758.80 and 189,061.60

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Solution

The fourth proportional to 441,781.60, 662,758.80 and 189,061.60 is: 283,629.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,781.60 : 662,758.80 = 189,061.60 : x
  2. Step 2: Convert to fraction form
    441,781.60/662,758.80 = 189,061.60/x
  3. Step 3: Cross multiply
    441,781.60x = 662,758.80 × 189,061.60
  4. Step 4: Simplify right side
    441,781.60x = 125,302,239,142.08
  5. Step 5: Solve for x
    x = 125,302,239,142.08/441,781.60
  6. Step 6: Final answer
    x = 283,629.38

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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.