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Finding the Fourth Proportional to 397,332.40, 595,998.60 and 353,786.80

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Solution

The fourth proportional to 397,332.40, 595,998.60 and 353,786.80 is: 530,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,332.40 : 595,998.60 = 353,786.80 : x
  2. Step 2: Convert to fraction form
    397,332.40/595,998.60 = 353,786.80/x
  3. Step 3: Cross multiply
    397,332.40x = 595,998.60 × 353,786.80
  4. Step 4: Simplify right side
    397,332.40x = 210,856,437,498.48
  5. Step 5: Solve for x
    x = 210,856,437,498.48/397,332.40
  6. Step 6: Final answer
    x = 530,680.20

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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.