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Finding the Fourth Proportional to 404,581.80, 606,872.70 and 194,111.40

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Solution

The fourth proportional to 404,581.80, 606,872.70 and 194,111.40 is: 291,167.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,581.80 : 606,872.70 = 194,111.40 : x
  2. Step 2: Convert to fraction form
    404,581.80/606,872.70 = 194,111.40/x
  3. Step 3: Cross multiply
    404,581.80x = 606,872.70 × 194,111.40
  4. Step 4: Simplify right side
    404,581.80x = 117,800,909,418.78
  5. Step 5: Solve for x
    x = 117,800,909,418.78/404,581.80
  6. Step 6: Final answer
    x = 291,167.10

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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.