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Finding the Fourth Proportional to 415,260.40, 622,890.60 and 332,316.40

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Solution

The fourth proportional to 415,260.40, 622,890.60 and 332,316.40 is: 498,474.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,260.40 : 622,890.60 = 332,316.40 : x
  2. Step 2: Convert to fraction form
    415,260.40/622,890.60 = 332,316.40/x
  3. Step 3: Cross multiply
    415,260.40x = 622,890.60 × 332,316.40
  4. Step 4: Simplify right side
    415,260.40x = 206,996,761,785.84
  5. Step 5: Solve for x
    x = 206,996,761,785.84/415,260.40
  6. Step 6: Final answer
    x = 498,474.60

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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.