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Finding the Fourth Proportional to 404,609.68, 606,615 and 194,047.12

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Solution

The fourth proportional to 404,609.68, 606,615 and 194,047.12 is: 290,927.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,609.68 : 606,615 = 194,047.12 : x
  2. Step 2: Convert to fraction form
    404,609.68/606,615 = 194,047.12/x
  3. Step 3: Cross multiply
    404,609.68x = 606,615 × 194,047.12
  4. Step 4: Simplify right side
    404,609.68x = 117,711,893,698.80
  5. Step 5: Solve for x
    x = 117,711,893,698.80/404,609.68
  6. Step 6: Final answer
    x = 290,927.03

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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.