Home / 617,466.36-851,286.78-445,240.20

Finding the Fourth Proportional to 617,466.36, 851,286.78 and 445,240.20

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Solution

The fourth proportional to 617,466.36, 851,286.78 and 445,240.20 is: 613,842.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,466.36 : 851,286.78 = 445,240.20 : x
  2. Step 2: Convert to fraction form
    617,466.36/851,286.78 = 445,240.20/x
  3. Step 3: Cross multiply
    617,466.36x = 851,286.78 × 445,240.20
  4. Step 4: Simplify right side
    617,466.36x = 379,027,096,184.56
  5. Step 5: Solve for x
    x = 379,027,096,184.56/617,466.36
  6. Step 6: Final answer
    x = 613,842.50

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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.