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Finding the Fourth Proportional to 543,326.10, 814,211.55 and 376,919.70

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Solution

The fourth proportional to 543,326.10, 814,211.55 and 376,919.70 is: 564,840.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,326.10 : 814,211.55 = 376,919.70 : x
  2. Step 2: Convert to fraction form
    543,326.10/814,211.55 = 376,919.70/x
  3. Step 3: Cross multiply
    543,326.10x = 814,211.55 × 376,919.70
  4. Step 4: Simplify right side
    543,326.10x = 306,892,373,162.54
  5. Step 5: Solve for x
    x = 306,892,373,162.54/543,326.10
  6. Step 6: Final answer
    x = 564,840.11

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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.