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Finding the Fourth Proportional to 269,904,659.60, 404,856,989.40 and 269,904,659.60

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Solution

The fourth proportional to 269,904,659.60, 404,856,989.40 and 269,904,659.60 is: 404,856,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,904,659.60 : 404,856,989.40 = 269,904,659.60 : x
  2. Step 2: Convert to fraction form
    269,904,659.60/404,856,989.40 = 269,904,659.60/x
  3. Step 3: Cross multiply
    269,904,659.60x = 404,856,989.40 × 269,904,659.60
  4. Step 4: Simplify right side
    269,904,659.60x = 109,272,787,910,687,808
  5. Step 5: Solve for x
    x = 109,272,787,910,687,808/269,904,659.60
  6. Step 6: Final answer
    x = 404,856,989.40

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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.