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Finding the Fourth Proportional to 624,205.44, 935,996.40 and 203,428.80

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Solution

The fourth proportional to 624,205.44, 935,996.40 and 203,428.80 is: 305,041.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,205.44 : 935,996.40 = 203,428.80 : x
  2. Step 2: Convert to fraction form
    624,205.44/935,996.40 = 203,428.80/x
  3. Step 3: Cross multiply
    624,205.44x = 935,996.40 × 203,428.80
  4. Step 4: Simplify right side
    624,205.44x = 190,408,624,456.32
  5. Step 5: Solve for x
    x = 190,408,624,456.32/624,205.44
  6. Step 6: Final answer
    x = 305,041.60

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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.