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Finding the Fourth Proportional to 469,508.76, 647,936.73 and 265,555.67

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Solution

The fourth proportional to 469,508.76, 647,936.73 and 265,555.67 is: 366,475.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,508.76 : 647,936.73 = 265,555.67 : x
  2. Step 2: Convert to fraction form
    469,508.76/647,936.73 = 265,555.67/x
  3. Step 3: Cross multiply
    469,508.76x = 647,936.73 × 265,555.67
  4. Step 4: Simplify right side
    469,508.76x = 172,063,269,213.08
  5. Step 5: Solve for x
    x = 172,063,269,213.08/469,508.76
  6. Step 6: Final answer
    x = 366,475.10

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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.