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Finding the Fourth Proportional to 398,950.38, 598,524.12 and 118,467.36

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Solution

The fourth proportional to 398,950.38, 598,524.12 and 118,467.36 is: 177,730.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,950.38 : 598,524.12 = 118,467.36 : x
  2. Step 2: Convert to fraction form
    398,950.38/598,524.12 = 118,467.36/x
  3. Step 3: Cross multiply
    398,950.38x = 598,524.12 × 118,467.36
  4. Step 4: Simplify right side
    398,950.38x = 70,905,572,392.72
  5. Step 5: Solve for x
    x = 70,905,572,392.72/398,950.38
  6. Step 6: Final answer
    x = 177,730.30

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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.