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Finding the Fourth Proportional to 404,711.40, 607,067.10 and 194,298.60

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Solution

The fourth proportional to 404,711.40, 607,067.10 and 194,298.60 is: 291,447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,711.40 : 607,067.10 = 194,298.60 : x
  2. Step 2: Convert to fraction form
    404,711.40/607,067.10 = 194,298.60/x
  3. Step 3: Cross multiply
    404,711.40x = 607,067.10 × 194,298.60
  4. Step 4: Simplify right side
    404,711.40x = 117,952,287,636.06
  5. Step 5: Solve for x
    x = 117,952,287,636.06/404,711.40
  6. Step 6: Final answer
    x = 291,447.90

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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.