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Finding the Fourth Proportional to 404,524.80, 606,295.20 and 286,230.24

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Solution

The fourth proportional to 404,524.80, 606,295.20 and 286,230.24 is: 428,997.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,524.80 : 606,295.20 = 286,230.24 : x
  2. Step 2: Convert to fraction form
    404,524.80/606,295.20 = 286,230.24/x
  3. Step 3: Cross multiply
    404,524.80x = 606,295.20 × 286,230.24
  4. Step 4: Simplify right side
    404,524.80x = 173,540,020,606.85
  5. Step 5: Solve for x
    x = 173,540,020,606.85/404,524.80
  6. Step 6: Final answer
    x = 428,997.23

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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.