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Finding the Fourth Proportional to 419,904,558.40, 586,505,892.80 and 419,904,558.40

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Solution

The fourth proportional to 419,904,558.40, 586,505,892.80 and 419,904,558.40 is: 586,505,892.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,558.40 : 586,505,892.80 = 419,904,558.40 : x
  2. Step 2: Convert to fraction form
    419,904,558.40/586,505,892.80 = 419,904,558.40/x
  3. Step 3: Cross multiply
    419,904,558.40x = 586,505,892.80 × 419,904,558.40
  4. Step 4: Simplify right side
    419,904,558.40x = 246,276,497,915,181,696
  5. Step 5: Solve for x
    x = 246,276,497,915,181,696/419,904,558.40
  6. Step 6: Final answer
    x = 586,505,892.80

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1.5x scale

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.