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Finding the Fourth Proportional to 665,804.40, 998,836.20 and 192,505.20

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Solution

The fourth proportional to 665,804.40, 998,836.20 and 192,505.20 is: 288,795.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,804.40 : 998,836.20 = 192,505.20 : x
  2. Step 2: Convert to fraction form
    665,804.40/998,836.20 = 192,505.20/x
  3. Step 3: Cross multiply
    665,804.40x = 998,836.20 × 192,505.20
  4. Step 4: Simplify right side
    665,804.40x = 192,281,162,448.24
  5. Step 5: Solve for x
    x = 192,281,162,448.24/665,804.40
  6. Step 6: Final answer
    x = 288,795.27

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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.