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Finding the Fourth Proportional to 536,115.12, 739,736 and 342,624

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Solution

The fourth proportional to 536,115.12, 739,736 and 342,624 is: 472,755.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,115.12 : 739,736 = 342,624 : x
  2. Step 2: Convert to fraction form
    536,115.12/739,736 = 342,624/x
  3. Step 3: Cross multiply
    536,115.12x = 739,736 × 342,624
  4. Step 4: Simplify right side
    536,115.12x = 253,451,307,264
  5. Step 5: Solve for x
    x = 253,451,307,264/536,115.12
  6. Step 6: Final answer
    x = 472,755.38

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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.