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Finding the Fourth Proportional to 410,846.40, 616,361.40 and 144,615.60

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Solution

The fourth proportional to 410,846.40, 616,361.40 and 144,615.60 is: 216,955.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,846.40 : 616,361.40 = 144,615.60 : x
  2. Step 2: Convert to fraction form
    410,846.40/616,361.40 = 144,615.60/x
  3. Step 3: Cross multiply
    410,846.40x = 616,361.40 × 144,615.60
  4. Step 4: Simplify right side
    410,846.40x = 89,135,473,677.84
  5. Step 5: Solve for x
    x = 89,135,473,677.84/410,846.40
  6. Step 6: Final answer
    x = 216,955.71

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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.