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Finding the Fourth Proportional to 445,744.80, 614,978.22 and 254,622.87

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Solution

The fourth proportional to 445,744.80, 614,978.22 and 254,622.87 is: 351,294.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,744.80 : 614,978.22 = 254,622.87 : x
  2. Step 2: Convert to fraction form
    445,744.80/614,978.22 = 254,622.87/x
  3. Step 3: Cross multiply
    445,744.80x = 614,978.22 × 254,622.87
  4. Step 4: Simplify right side
    445,744.80x = 156,587,519,363.89
  5. Step 5: Solve for x
    x = 156,587,519,363.89/445,744.80
  6. Step 6: Final answer
    x = 351,294.10

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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.