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Finding the Fourth Proportional to 404,658.40, 607,230.60 and 167,976.40

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Solution

The fourth proportional to 404,658.40, 607,230.60 and 167,976.40 is: 252,065.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,658.40 : 607,230.60 = 167,976.40 : x
  2. Step 2: Convert to fraction form
    404,658.40/607,230.60 = 167,976.40/x
  3. Step 3: Cross multiply
    404,658.40x = 607,230.60 × 167,976.40
  4. Step 4: Simplify right side
    404,658.40x = 102,000,410,157.84
  5. Step 5: Solve for x
    x = 102,000,410,157.84/404,658.40
  6. Step 6: Final answer
    x = 252,065.47

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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.