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Finding the Fourth Proportional to 404,656.20, 606,255.30 and 193,829.40

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Solution

The fourth proportional to 404,656.20, 606,255.30 and 193,829.40 is: 290,394.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,656.20 : 606,255.30 = 193,829.40 : x
  2. Step 2: Convert to fraction form
    404,656.20/606,255.30 = 193,829.40/x
  3. Step 3: Cross multiply
    404,656.20x = 606,255.30 × 193,829.40
  4. Step 4: Simplify right side
    404,656.20x = 117,510,101,045.82
  5. Step 5: Solve for x
    x = 117,510,101,045.82/404,656.20
  6. Step 6: Final answer
    x = 290,394.91

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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.