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Finding the Fourth Proportional to 557,364.80, 836,047.20 and 401,067.20

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Solution

The fourth proportional to 557,364.80, 836,047.20 and 401,067.20 is: 601,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,364.80 : 836,047.20 = 401,067.20 : x
  2. Step 2: Convert to fraction form
    557,364.80/836,047.20 = 401,067.20/x
  3. Step 3: Cross multiply
    557,364.80x = 836,047.20 × 401,067.20
  4. Step 4: Simplify right side
    557,364.80x = 335,311,109,571.84
  5. Step 5: Solve for x
    x = 335,311,109,571.84/557,364.80
  6. Step 6: Final answer
    x = 601,600.80

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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.