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Finding the Fourth Proportional to 606,139.36, 836,129.82 and 379,391.20

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Solution

The fourth proportional to 606,139.36, 836,129.82 and 379,391.20 is: 523,345.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,139.36 : 836,129.82 = 379,391.20 : x
  2. Step 2: Convert to fraction form
    606,139.36/836,129.82 = 379,391.20/x
  3. Step 3: Cross multiply
    606,139.36x = 836,129.82 × 379,391.20
  4. Step 4: Simplify right side
    606,139.36x = 317,220,295,765.58
  5. Step 5: Solve for x
    x = 317,220,295,765.58/606,139.36
  6. Step 6: Final answer
    x = 523,345.48

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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.