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Finding the Fourth Proportional to 398,020.64, 597,029.58 and 161,362.76

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Solution

The fourth proportional to 398,020.64, 597,029.58 and 161,362.76 is: 242,043.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,020.64 : 597,029.58 = 161,362.76 : x
  2. Step 2: Convert to fraction form
    398,020.64/597,029.58 = 161,362.76/x
  3. Step 3: Cross multiply
    398,020.64x = 597,029.58 × 161,362.76
  4. Step 4: Simplify right side
    398,020.64x = 96,338,340,830.44
  5. Step 5: Solve for x
    x = 96,338,340,830.44/398,020.64
  6. Step 6: Final answer
    x = 242,043.58

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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.