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Finding the Fourth Proportional to 598,380, 825,745.45 and 340,284.99

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Solution

The fourth proportional to 598,380, 825,745.45 and 340,284.99 is: 469,582.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,380 : 825,745.45 = 340,284.99 : x
  2. Step 2: Convert to fraction form
    598,380/825,745.45 = 340,284.99/x
  3. Step 3: Cross multiply
    598,380x = 825,745.45 × 340,284.99
  4. Step 4: Simplify right side
    598,380x = 280,988,782,195.80
  5. Step 5: Solve for x
    x = 280,988,782,195.80/598,380
  6. Step 6: Final answer
    x = 469,582.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.