Home / 398,923.36-597,964.98-132,612.40

Finding the Fourth Proportional to 398,923.36, 597,964.98 and 132,612.40

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Solution

The fourth proportional to 398,923.36, 597,964.98 and 132,612.40 is: 198,778.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,923.36 : 597,964.98 = 132,612.40 : x
  2. Step 2: Convert to fraction form
    398,923.36/597,964.98 = 132,612.40/x
  3. Step 3: Cross multiply
    398,923.36x = 597,964.98 × 132,612.40
  4. Step 4: Simplify right side
    398,923.36x = 79,297,571,113.75
  5. Step 5: Solve for x
    x = 79,297,571,113.75/398,923.36
  6. Step 6: Final answer
    x = 198,778.96

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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.