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Finding the Fourth Proportional to 561,736.60, 842,604.90 and 404,272.60

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Solution

The fourth proportional to 561,736.60, 842,604.90 and 404,272.60 is: 606,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,736.60 : 842,604.90 = 404,272.60 : x
  2. Step 2: Convert to fraction form
    561,736.60/842,604.90 = 404,272.60/x
  3. Step 3: Cross multiply
    561,736.60x = 842,604.90 × 404,272.60
  4. Step 4: Simplify right side
    561,736.60x = 340,642,073,695.74
  5. Step 5: Solve for x
    x = 340,642,073,695.74/561,736.60
  6. Step 6: Final answer
    x = 606,408.90

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Similar ratio
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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.