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Finding the Fourth Proportional to 416,722.41, 575,076.88 and 225,735.75

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Solution

The fourth proportional to 416,722.41, 575,076.88 and 225,735.75 is: 311,515.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,722.41 : 575,076.88 = 225,735.75 : x
  2. Step 2: Convert to fraction form
    416,722.41/575,076.88 = 225,735.75/x
  3. Step 3: Cross multiply
    416,722.41x = 575,076.88 × 225,735.75
  4. Step 4: Simplify right side
    416,722.41x = 129,815,410,814.46
  5. Step 5: Solve for x
    x = 129,815,410,814.46/416,722.41
  6. Step 6: Final answer
    x = 311,515.31

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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.