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Finding the Fourth Proportional to 454,800.15, 681,347.30 and 380,398.41

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Solution

The fourth proportional to 454,800.15, 681,347.30 and 380,398.41 is: 569,884.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,800.15 : 681,347.30 = 380,398.41 : x
  2. Step 2: Convert to fraction form
    454,800.15/681,347.30 = 380,398.41/x
  3. Step 3: Cross multiply
    454,800.15x = 681,347.30 × 380,398.41
  4. Step 4: Simplify right side
    454,800.15x = 259,183,427,675.80
  5. Step 5: Solve for x
    x = 259,183,427,675.80/454,800.15
  6. Step 6: Final answer
    x = 569,884.22

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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.