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Finding the Fourth Proportional to 385,768.47, 533,375.91 and 337,884.12

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Solution

The fourth proportional to 385,768.47, 533,375.91 and 337,884.12 is: 467,169.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,768.47 : 533,375.91 = 337,884.12 : x
  2. Step 2: Convert to fraction form
    385,768.47/533,375.91 = 337,884.12/x
  3. Step 3: Cross multiply
    385,768.47x = 533,375.91 × 337,884.12
  4. Step 4: Simplify right side
    385,768.47x = 180,219,249,979.55
  5. Step 5: Solve for x
    x = 180,219,249,979.55/385,768.47
  6. Step 6: Final answer
    x = 467,169.47

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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.