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Finding the Fourth Proportional to 467,300.65, 644,874.09 and 252,440.05

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Solution

The fourth proportional to 467,300.65, 644,874.09 and 252,440.05 is: 348,366.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,300.65 : 644,874.09 = 252,440.05 : x
  2. Step 2: Convert to fraction form
    467,300.65/644,874.09 = 252,440.05/x
  3. Step 3: Cross multiply
    467,300.65x = 644,874.09 × 252,440.05
  4. Step 4: Simplify right side
    467,300.65x = 162,792,047,523.30
  5. Step 5: Solve for x
    x = 162,792,047,523.30/467,300.65
  6. Step 6: Final answer
    x = 348,366.83

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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.