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Finding the Fourth Proportional to 367,915.32, 507,721.01 and 206,768.97

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Solution

The fourth proportional to 367,915.32, 507,721.01 and 206,768.97 is: 285,339.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,915.32 : 507,721.01 = 206,768.97 : x
  2. Step 2: Convert to fraction form
    367,915.32/507,721.01 = 206,768.97/x
  3. Step 3: Cross multiply
    367,915.32x = 507,721.01 × 206,768.97
  4. Step 4: Simplify right side
    367,915.32x = 104,980,949,251.22
  5. Step 5: Solve for x
    x = 104,980,949,251.22/367,915.32
  6. Step 6: Final answer
    x = 285,339.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.