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Finding the Fourth Proportional to 546,523.40, 819,785.10 and 396,057.80

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Solution

The fourth proportional to 546,523.40, 819,785.10 and 396,057.80 is: 594,086.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,523.40 : 819,785.10 = 396,057.80 : x
  2. Step 2: Convert to fraction form
    546,523.40/819,785.10 = 396,057.80/x
  3. Step 3: Cross multiply
    546,523.40x = 819,785.10 × 396,057.80
  4. Step 4: Simplify right side
    546,523.40x = 324,682,283,178.78
  5. Step 5: Solve for x
    x = 324,682,283,178.78/546,523.40
  6. Step 6: Final answer
    x = 594,086.70

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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.