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Finding the Fourth Proportional to 415,037.20, 622,632.60 and 134,563.60

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Solution

The fourth proportional to 415,037.20, 622,632.60 and 134,563.60 is: 201,870.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,037.20 : 622,632.60 = 134,563.60 : x
  2. Step 2: Convert to fraction form
    415,037.20/622,632.60 = 134,563.60/x
  3. Step 3: Cross multiply
    415,037.20x = 622,632.60 × 134,563.60
  4. Step 4: Simplify right side
    415,037.20x = 83,783,684,133.36
  5. Step 5: Solve for x
    x = 83,783,684,133.36/415,037.20
  6. Step 6: Final answer
    x = 201,870.30

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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.