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Finding the Fourth Proportional to 469,571.91, 647,609.61 and 360,939.53

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Solution

The fourth proportional to 469,571.91, 647,609.61 and 360,939.53 is: 497,789.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,571.91 : 647,609.61 = 360,939.53 : x
  2. Step 2: Convert to fraction form
    469,571.91/647,609.61 = 360,939.53/x
  3. Step 3: Cross multiply
    469,571.91x = 647,609.61 × 360,939.53
  4. Step 4: Simplify right side
    469,571.91x = 233,747,905,018.84
  5. Step 5: Solve for x
    x = 233,747,905,018.84/469,571.91
  6. Step 6: Final answer
    x = 497,789.37

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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.