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Finding the Fourth Proportional to 381,887.18, 572,756.96 and 362,920.42

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Solution

The fourth proportional to 381,887.18, 572,756.96 and 362,920.42 is: 544,310.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,887.18 : 572,756.96 = 362,920.42 : x
  2. Step 2: Convert to fraction form
    381,887.18/572,756.96 = 362,920.42/x
  3. Step 3: Cross multiply
    381,887.18x = 572,756.96 × 362,920.42
  4. Step 4: Simplify right side
    381,887.18x = 207,865,196,481.12
  5. Step 5: Solve for x
    x = 207,865,196,481.12/381,887.18
  6. Step 6: Final answer
    x = 544,310.49

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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.