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Finding the Fourth Proportional to 447,542,705.20, 671,314,057.80 and 447,542,705.20

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Solution

The fourth proportional to 447,542,705.20, 671,314,057.80 and 447,542,705.20 is: 671,314,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,542,705.20 : 671,314,057.80 = 447,542,705.20 : x
  2. Step 2: Convert to fraction form
    447,542,705.20/671,314,057.80 = 447,542,705.20/x
  3. Step 3: Cross multiply
    447,542,705.20x = 671,314,057.80 × 447,542,705.20
  4. Step 4: Simplify right side
    447,542,705.20x = 300,441,709,466,601,152
  5. Step 5: Solve for x
    x = 300,441,709,466,601,152/447,542,705.20
  6. Step 6: Final answer
    x = 671,314,057.80

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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.