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Finding the Fourth Proportional to 404,616.30, 606,924.45 and 194,145.90

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Solution

The fourth proportional to 404,616.30, 606,924.45 and 194,145.90 is: 291,218.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,616.30 : 606,924.45 = 194,145.90 : x
  2. Step 2: Convert to fraction form
    404,616.30/606,924.45 = 194,145.90/x
  3. Step 3: Cross multiply
    404,616.30x = 606,924.45 × 194,145.90
  4. Step 4: Simplify right side
    404,616.30x = 117,831,893,577.26
  5. Step 5: Solve for x
    x = 117,831,893,577.26/404,616.30
  6. Step 6: Final answer
    x = 291,218.85

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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.