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Finding the Fourth Proportional to 500,619.33, 750,626.19 and 196,649.58

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Solution

The fourth proportional to 500,619.33, 750,626.19 and 196,649.58 is: 294,855.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,619.33 : 750,626.19 = 196,649.58 : x
  2. Step 2: Convert to fraction form
    500,619.33/750,626.19 = 196,649.58/x
  3. Step 3: Cross multiply
    500,619.33x = 750,626.19 × 196,649.58
  4. Step 4: Simplify right side
    500,619.33x = 147,610,325,000.50
  5. Step 5: Solve for x
    x = 147,610,325,000.50/500,619.33
  6. Step 6: Final answer
    x = 294,855.42

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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.