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Finding the Fourth Proportional to 398,610.63, 597,915.99 and 161,953.47

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Solution

The fourth proportional to 398,610.63, 597,915.99 and 161,953.47 is: 242,930.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,610.63 : 597,915.99 = 161,953.47 : x
  2. Step 2: Convert to fraction form
    398,610.63/597,915.99 = 161,953.47/x
  3. Step 3: Cross multiply
    398,610.63x = 597,915.99 × 161,953.47
  4. Step 4: Simplify right side
    398,610.63x = 96,834,569,348.99
  5. Step 5: Solve for x
    x = 96,834,569,348.99/398,610.63
  6. Step 6: Final answer
    x = 242,930.22

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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.