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Finding the Fourth Proportional to 419,904,417.60, 588,470,846.40 and 419,904,417.60

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Solution

The fourth proportional to 419,904,417.60, 588,470,846.40 and 419,904,417.60 is: 588,470,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,417.60 : 588,470,846.40 = 419,904,417.60 : x
  2. Step 2: Convert to fraction form
    419,904,417.60/588,470,846.40 = 419,904,417.60/x
  3. Step 3: Cross multiply
    419,904,417.60x = 588,470,846.40 × 419,904,417.60
  4. Step 4: Simplify right side
    419,904,417.60x = 247,101,508,032,171,072
  5. Step 5: Solve for x
    x = 247,101,508,032,171,072/419,904,417.60
  6. Step 6: Final answer
    x = 588,470,846.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.