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Finding the Fourth Proportional to 493,323.40, 739,985.10 and 177,790.60

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Solution

The fourth proportional to 493,323.40, 739,985.10 and 177,790.60 is: 266,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,323.40 : 739,985.10 = 177,790.60 : x
  2. Step 2: Convert to fraction form
    493,323.40/739,985.10 = 177,790.60/x
  3. Step 3: Cross multiply
    493,323.40x = 739,985.10 × 177,790.60
  4. Step 4: Simplify right side
    493,323.40x = 131,562,394,920.06
  5. Step 5: Solve for x
    x = 131,562,394,920.06/493,323.40
  6. Step 6: Final answer
    x = 266,685.90

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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.