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Finding the Fourth Proportional to 269,462.40, 404,339.40 and 111,706.80

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Solution

The fourth proportional to 269,462.40, 404,339.40 and 111,706.80 is: 167,620.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,462.40 : 404,339.40 = 111,706.80 : x
  2. Step 2: Convert to fraction form
    269,462.40/404,339.40 = 111,706.80/x
  3. Step 3: Cross multiply
    269,462.40x = 404,339.40 × 111,706.80
  4. Step 4: Simplify right side
    269,462.40x = 45,167,460,487.92
  5. Step 5: Solve for x
    x = 45,167,460,487.92/269,462.40
  6. Step 6: Final answer
    x = 167,620.64

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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.