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Finding the Fourth Proportional to 409,246.20, 613,869.30 and 409,246.20

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Solution

The fourth proportional to 409,246.20, 613,869.30 and 409,246.20 is: 613,869.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,246.20 : 613,869.30 = 409,246.20 : x
  2. Step 2: Convert to fraction form
    409,246.20/613,869.30 = 409,246.20/x
  3. Step 3: Cross multiply
    409,246.20x = 613,869.30 × 409,246.20
  4. Step 4: Simplify right side
    409,246.20x = 251,223,678,321.66
  5. Step 5: Solve for x
    x = 251,223,678,321.66/409,246.20
  6. Step 6: Final answer
    x = 613,869.30

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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.