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Finding the Fourth Proportional to 469,331.70, 647,673.78 and 265,422.66

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Solution

The fourth proportional to 469,331.70, 647,673.78 and 265,422.66 is: 366,281.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,331.70 : 647,673.78 = 265,422.66 : x
  2. Step 2: Convert to fraction form
    469,331.70/647,673.78 = 265,422.66/x
  3. Step 3: Cross multiply
    469,331.70x = 647,673.78 × 265,422.66
  4. Step 4: Simplify right side
    469,331.70x = 171,907,297,499.86
  5. Step 5: Solve for x
    x = 171,907,297,499.86/469,331.70
  6. Step 6: Final answer
    x = 366,281.03

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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.