Home / 617,440.36-851,250.90-445,214.20

Finding the Fourth Proportional to 617,440.36, 851,250.90 and 445,214.20

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Solution

The fourth proportional to 617,440.36, 851,250.90 and 445,214.20 is: 613,806.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,440.36 : 851,250.90 = 445,214.20 : x
  2. Step 2: Convert to fraction form
    617,440.36/851,250.90 = 445,214.20/x
  3. Step 3: Cross multiply
    617,440.36x = 851,250.90 × 445,214.20
  4. Step 4: Simplify right side
    617,440.36x = 378,988,988,442.78
  5. Step 5: Solve for x
    x = 378,988,988,442.78/617,440.36
  6. Step 6: Final answer
    x = 613,806.63

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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.