Home / 398,977.65-598,466.40-171,223.86

Finding the Fourth Proportional to 398,977.65, 598,466.40 and 171,223.86

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Solution

The fourth proportional to 398,977.65, 598,466.40 and 171,223.86 is: 256,835.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,977.65 : 598,466.40 = 171,223.86 : x
  2. Step 2: Convert to fraction form
    398,977.65/598,466.40 = 171,223.86/x
  3. Step 3: Cross multiply
    398,977.65x = 598,466.40 × 171,223.86
  4. Step 4: Simplify right side
    398,977.65x = 102,471,727,088.30
  5. Step 5: Solve for x
    x = 102,471,727,088.30/398,977.65
  6. Step 6: Final answer
    x = 256,835.76

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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.