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Finding the Fourth Proportional to 409,938.74, 565,478.65 and 246,481.71

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Solution

The fourth proportional to 409,938.74, 565,478.65 and 246,481.71 is: 340,002.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,938.74 : 565,478.65 = 246,481.71 : x
  2. Step 2: Convert to fraction form
    409,938.74/565,478.65 = 246,481.71/x
  3. Step 3: Cross multiply
    409,938.74x = 565,478.65 × 246,481.71
  4. Step 4: Simplify right side
    409,938.74x = 139,380,147,382.37
  5. Step 5: Solve for x
    x = 139,380,147,382.37/409,938.74
  6. Step 6: Final answer
    x = 340,002.38

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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.