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Finding the Fourth Proportional to 566,713.28, 780,733.80 and 394,335.20

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Solution

The fourth proportional to 566,713.28, 780,733.80 and 394,335.20 is: 543,256.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,713.28 : 780,733.80 = 394,335.20 : x
  2. Step 2: Convert to fraction form
    566,713.28/780,733.80 = 394,335.20/x
  3. Step 3: Cross multiply
    566,713.28x = 780,733.80 × 394,335.20
  4. Step 4: Simplify right side
    566,713.28x = 307,870,821,121.60
  5. Step 5: Solve for x
    x = 307,870,821,121.60/566,713.28
  6. Step 6: Final answer
    x = 543,256.76

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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.