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Finding the Fourth Proportional to 269,729.20, 404,593.80 and 185,748.40

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Solution

The fourth proportional to 269,729.20, 404,593.80 and 185,748.40 is: 278,622.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,729.20 : 404,593.80 = 185,748.40 : x
  2. Step 2: Convert to fraction form
    269,729.20/404,593.80 = 185,748.40/x
  3. Step 3: Cross multiply
    269,729.20x = 404,593.80 × 185,748.40
  4. Step 4: Simplify right side
    269,729.20x = 75,152,650,999.92
  5. Step 5: Solve for x
    x = 75,152,650,999.92/269,729.20
  6. Step 6: Final answer
    x = 278,622.60

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1.5x scale

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.