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Finding the Fourth Proportional to 378,559,631.70, 567,839,447.55 and 378,559,631.70

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Solution

The fourth proportional to 378,559,631.70, 567,839,447.55 and 378,559,631.70 is: 567,839,447.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,559,631.70 : 567,839,447.55 = 378,559,631.70 : x
  2. Step 2: Convert to fraction form
    378,559,631.70/567,839,447.55 = 378,559,631.70/x
  3. Step 3: Cross multiply
    378,559,631.70x = 567,839,447.55 × 378,559,631.70
  4. Step 4: Simplify right side
    378,559,631.70x = 214,961,092,129,259,456
  5. Step 5: Solve for x
    x = 214,961,092,129,259,456/378,559,631.70
  6. Step 6: Final answer
    x = 567,839,447.55

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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.