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Finding the Fourth Proportional to 441,732.60, 662,685.30 and 189,012.60

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Solution

The fourth proportional to 441,732.60, 662,685.30 and 189,012.60 is: 283,555.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,732.60 : 662,685.30 = 189,012.60 : x
  2. Step 2: Convert to fraction form
    441,732.60/662,685.30 = 189,012.60/x
  3. Step 3: Cross multiply
    441,732.60x = 662,685.30 × 189,012.60
  4. Step 4: Simplify right side
    441,732.60x = 125,255,871,534.78
  5. Step 5: Solve for x
    x = 125,255,871,534.78/441,732.60
  6. Step 6: Final answer
    x = 283,555.87

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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.