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Finding the Fourth Proportional to 404,819.40, 607,229.10 and 194,406.60

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Solution

The fourth proportional to 404,819.40, 607,229.10 and 194,406.60 is: 291,609.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,819.40 : 607,229.10 = 194,406.60 : x
  2. Step 2: Convert to fraction form
    404,819.40/607,229.10 = 194,406.60/x
  3. Step 3: Cross multiply
    404,819.40x = 607,229.10 × 194,406.60
  4. Step 4: Simplify right side
    404,819.40x = 118,049,344,752.06
  5. Step 5: Solve for x
    x = 118,049,344,752.06/404,819.40
  6. Step 6: Final answer
    x = 291,609.90

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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.