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Finding the Fourth Proportional to 536,619.54, 803,877.57 and 311,507.94

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Solution

The fourth proportional to 536,619.54, 803,877.57 and 311,507.94 is: 466,651.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,619.54 : 803,877.57 = 311,507.94 : x
  2. Step 2: Convert to fraction form
    536,619.54/803,877.57 = 311,507.94/x
  3. Step 3: Cross multiply
    536,619.54x = 803,877.57 × 311,507.94
  4. Step 4: Simplify right side
    536,619.54x = 250,414,245,842.91
  5. Step 5: Solve for x
    x = 250,414,245,842.91/536,619.54
  6. Step 6: Final answer
    x = 466,651.37

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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.